{ "$schema": "https://verifymcp.io/schemas/changelog.json", "server": "pipeworx-io-codeforces", "component": "codeforces-mcp", "generated_at": "2026-09-27T10:27:58.649Z", "tracking_since": "2026-07-26", "counts": { "critical": 3, "security": 97, "functional": 0, "cosmetic": 0 }, "events": [ { "id": "chg_01a0e0a0-97fe-7870-9595-1a127fbb7ae7", "kind": "check.unverifiable", "family": "auth-oauth", "subject_kind": "check", "subject": "auth-oauth", "subject_child": "", "from_code": "auth.rfc9728_invoke", "to_code": "auth.none_unlisted", "from_value": "pass", "to_value": "unverified", "materiality": "security", "direction": "regression", "score_delta": null, "detail": {}, "occurred_on": "2026-09-27", "occurred_at": "2026-09-27 02:10:16.091693+00", "observed_since": "2026-09-26", "source": "scan", "summary": "Authorization (pass → unverified)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0e0a0-97fe-7870-9595-1a127fbb7ae7" }, { "id": "chg_01a0e0a0-97ff-7d76-80b6-a44f82de8dda", "kind": "check.unverifiable", "family": "stability", "subject_kind": "check", "subject": "stability", "subject_child": "", "from_code": "stability.stable", "to_code": "stability.insufficient_history", "from_value": "pass", "to_value": "unverified", "materiality": "security", "direction": "regression", "score_delta": null, "detail": { "reason": "tools_unlisted" }, "occurred_on": "2026-09-27", "occurred_at": "2026-09-27 02:10:16.091693+00", "observed_since": "2026-09-26", "source": "scan", "summary": "Stability (pass → unverified)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0e0a0-97ff-7d76-80b6-a44f82de8dda" }, { "id": "chg_01a0e0a0-9800-7332-b171-d297632bd82f", "kind": "check.unverifiable", "family": "tool-safety-injection", "subject_kind": "check", "subject": "tool-safety-injection", "subject_child": "", "from_code": "toolsafety.injection_clean", "to_code": "toolsafety.unreachable", "from_value": "pass", "to_value": "unverified", "materiality": "security", "direction": "regression", "score_delta": null, "detail": {}, "occurred_on": "2026-09-27", "occurred_at": "2026-09-27 02:10:16.091693+00", "observed_since": "2026-09-26", "source": "scan", "summary": "Tool safety (pass → unverified)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0e0a0-9800-7332-b171-d297632bd82f" }, { "id": "chg_01a0db06-888f-7b2d-b250-93ccf390bc24", "kind": "check.reverified", "family": "auth-oauth", "subject_kind": "check", "subject": "auth-oauth", "subject_child": "", "from_code": "auth.none_unlisted", "to_code": "auth.rfc9728_invoke", "from_value": "unverified", "to_value": "pass", "materiality": "security", "direction": "improvement", "score_delta": null, "detail": {}, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-25", "source": "scan", "summary": "Authorization (unverified → pass)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-888f-7b2d-b250-93ccf390bc24" }, { "id": "chg_01a0db06-8894-7193-a7b8-416a85e9a97e", "kind": "check.reverified", "family": "tool-safety-injection", "subject_kind": "check", "subject": "tool-safety-injection", "subject_child": "", "from_code": "toolsafety.unreachable", "to_code": "toolsafety.injection_clean", "from_value": "unverified", "to_value": "pass", "materiality": "security", "direction": "improvement", "score_delta": null, "detail": {}, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-25", "source": "scan", "summary": "Injection markers (unverified → pass)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-8894-7193-a7b8-416a85e9a97e" }, { "id": "chg_01a0db06-8897-77d5-b111-c0918607647c", "kind": "check.reverified", "family": "stability", "subject_kind": "check", "subject": "stability", "subject_child": "", "from_code": "stability.insufficient_history", "to_code": "stability.stable", "from_value": "unverified", "to_value": "pass", "materiality": "security", "direction": "improvement", "score_delta": null, "detail": {}, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-25", "source": "scan", "summary": "Stability (unverified → pass)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-8897-77d5-b111-c0918607647c" }, { "id": "chg_01a0db06-889b-7d14-8714-ba125cecfc4b", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-889b-7d14-8714-ba125cecfc4b" }, { "id": "chg_01a0db06-88a2-7b97-8525-ce2f4fffd231", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-88a2-7b97-8525-ce2f4fffd231" }, { "id": "chg_01a0db06-88a8-7922-acd1-c535fe1340c5", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-88a8-7922-acd1-c535fe1340c5" }, { "id": "chg_01a0db06-88b4-71e3-a343-69b59ace79c8", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-88b4-71e3-a343-69b59ace79c8" }, { "id": "chg_01a0db06-88b9-7988-b710-e3851f6c329f", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "entity_profile", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "entity_profile" }, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Tool “entity_profile” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-88b9-7988-b710-e3851f6c329f" }, { "id": "chg_01a0db06-88c0-736e-a725-b73182a5818d", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "polymarket_arbitrage", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "polymarket_arbitrage" }, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Tool “polymarket_arbitrage” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-88c0-736e-a725-b73182a5818d" }, { "id": "chg_01a0db06-88c0-799e-94a4-a7f73cc8c47e", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "polymarket_edge_tracker", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "polymarket_edge_tracker" }, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Tool “polymarket_edge_tracker” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-88c0-799e-94a4-a7f73cc8c47e" }, { "id": "chg_01a0db06-88c0-7e4b-9fcd-d3e6eb820db5", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "polymarket_edges", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "polymarket_edges" }, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Tool “polymarket_edges” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-88c0-7e4b-9fcd-d3e6eb820db5" }, { "id": "chg_01a0db06-88c2-7e1e-a283-d93b4f7cba7e", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "polymarket_fill_risk", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "polymarket_fill_risk" }, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Tool “polymarket_fill_risk” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-88c2-7e1e-a283-d93b4f7cba7e" }, { "id": "chg_01a0db06-88c6-730c-aeea-9924df1d08f0", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "polymarket_kalshi_spread", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "polymarket_kalshi_spread" }, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-88c6-730c-aeea-9924df1d08f0" }, { "id": "chg_01a0db06-88dd-726b-816a-d33e9c9eb0fd", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-09-26", "occurred_at": "2026-09-26 00:03:53.443209+00", "observed_since": "2026-09-13", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0db06-88dd-726b-816a-d33e9c9eb0fd" }, { "id": "chg_01a09da9-1521-7819-a6b2-95673d5dda2a", "kind": "check.unverifiable", "family": "auth-oauth", "subject_kind": "check", "subject": "auth-oauth", "subject_child": "", "from_code": "auth.rfc9728_invoke", "to_code": "auth.none_unlisted", "from_value": "pass", "to_value": "unverified", "materiality": "security", "direction": "regression", "score_delta": null, "detail": {}, "occurred_on": "2026-09-14", "occurred_at": "2026-09-14 02:04:58.977912+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Authorization (pass → unverified)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a09da9-1521-7819-a6b2-95673d5dda2a" }, { "id": "chg_01a09da9-1523-7148-9a4d-292bc3ae925f", "kind": "check.verdict", "family": "stability", "subject_kind": "check", "subject": "stability", "subject_child": "", "from_code": "stability.stable", "to_code": "stability.churn", "from_value": "pass", "to_value": "fail", "materiality": "security", "direction": "regression", "score_delta": null, "detail": { "days": "30", "added": "0", "breaks": "0", "removed": "39", "auth_transport": "0" }, "occurred_on": "2026-09-14", "occurred_at": "2026-09-14 02:04:58.977912+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Stability (pass → fail)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a09da9-1523-7148-9a4d-292bc3ae925f" }, { "id": "chg_01a09da9-1524-7072-a2dd-f9948370c932", "kind": "check.unverifiable", "family": "tool-safety-injection", "subject_kind": "check", "subject": "tool-safety-injection", "subject_child": "", "from_code": "toolsafety.injection_clean", "to_code": "toolsafety.unreachable", "from_value": "pass", "to_value": "unverified", "materiality": "security", "direction": "regression", "score_delta": null, "detail": {}, "occurred_on": "2026-09-14", "occurred_at": "2026-09-14 02:04:58.977912+00", "observed_since": "2026-09-13", "source": "scan", "summary": "Tool safety (pass → unverified)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a09da9-1524-7072-a2dd-f9948370c932" }, { "id": "chg_01a09882-9d7c-7666-a21d-f69aaca69e5d", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-09-13", "occurred_at": "2026-09-13 02:04:51.891932+00", "observed_since": "2026-09-12", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a09882-9d7c-7666-a21d-f69aaca69e5d" }, { "id": "chg_01a09882-9d7d-785c-ac6b-1f87536cf4e0", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-09-13", "occurred_at": "2026-09-13 02:04:51.891932+00", "observed_since": "2026-09-12", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a09882-9d7d-785c-ac6b-1f87536cf4e0" }, { "id": "chg_01a09882-9d7d-7cf7-ba1d-13d8c9f338cc", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-09-13", "occurred_at": "2026-09-13 02:04:51.891932+00", "observed_since": "2026-09-12", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a09882-9d7d-7cf7-ba1d-13d8c9f338cc" }, { "id": "chg_01a09882-9d7e-721c-94ef-93ba69469984", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-09-13", "occurred_at": "2026-09-13 02:04:51.891932+00", "observed_since": "2026-09-12", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a09882-9d7e-721c-94ef-93ba69469984" }, { "id": "chg_01a09882-9d7e-7891-858a-1ea43c520fdc", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-09-13", "occurred_at": "2026-09-13 02:04:51.891932+00", "observed_since": "2026-09-12", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a09882-9d7e-7891-858a-1ea43c520fdc" }, { "id": "chg_01a0935c-59bd-7f26-9a71-119d2c2d0a56", "kind": "check.verdict", "family": "auth-oauth", "subject_kind": "check", "subject": "auth-oauth", "subject_child": "", "from_code": "auth.none_destructive", "to_code": "auth.rfc9728_invoke", "from_value": "fail", "to_value": "pass", "materiality": "security", "direction": "improvement", "score_delta": null, "detail": {}, "occurred_on": "2026-09-12", "occurred_at": "2026-09-12 02:04:58.11019+00", "observed_since": "2026-09-11", "source": "scan", "summary": "Authorization (fail → pass)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0935c-59bd-7f26-9a71-119d2c2d0a56" }, { "id": "chg_01a0935c-59be-7c96-a8a3-b27da8c81be1", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-09-12", "occurred_at": "2026-09-12 02:04:58.11019+00", "observed_since": "2026-09-11", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0935c-59be-7c96-a8a3-b27da8c81be1" }, { "id": "chg_01a0935c-59bf-72da-ba6c-7c89be5be94c", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-09-12", "occurred_at": "2026-09-12 02:04:58.11019+00", "observed_since": "2026-09-11", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0935c-59bf-72da-ba6c-7c89be5be94c" }, { "id": "chg_01a0935c-59bf-78fd-b38f-af379dc29cd1", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-09-12", "occurred_at": "2026-09-12 02:04:58.11019+00", "observed_since": "2026-09-11", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0935c-59bf-78fd-b38f-af379dc29cd1" }, { "id": "chg_01a0935c-59bf-7eec-a19f-e1a9f0097a6d", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "bet_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "bet_research" }, "occurred_on": "2026-09-12", "occurred_at": "2026-09-12 02:04:58.11019+00", "observed_since": "2026-09-11", "source": "scan", "summary": "Tool “bet_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0935c-59bf-7eec-a19f-e1a9f0097a6d" }, { "id": "chg_01a0935c-59c0-7a6e-8d2a-1040d8d3b613", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-09-12", "occurred_at": "2026-09-12 02:04:58.11019+00", "observed_since": "2026-09-11", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0935c-59c0-7a6e-8d2a-1040d8d3b613" }, { "id": "chg_01a0935c-59c1-7223-b3f3-34e2736ccc69", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "polymarket_kalshi_spread", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "polymarket_kalshi_spread" }, "occurred_on": "2026-09-12", "occurred_at": "2026-09-12 02:04:58.11019+00", "observed_since": "2026-09-11", "source": "scan", "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0935c-59c1-7223-b3f3-34e2736ccc69" }, { "id": "chg_01a0935c-59c1-7dfc-9ab5-c363d2abbd39", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-09-12", "occurred_at": "2026-09-12 02:04:58.11019+00", "observed_since": "2026-09-11", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0935c-59c1-7dfc-9ab5-c363d2abbd39" }, { "id": "chg_01a08e35-8412-7e3b-a3af-0a2705bb4993", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-09-11", "occurred_at": "2026-09-11 02:04:26.965664+00", "observed_since": "2026-09-10", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a08e35-8412-7e3b-a3af-0a2705bb4993" }, { "id": "chg_01a08e35-8414-7305-9a6a-618c687c35c5", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-09-11", "occurred_at": "2026-09-11 02:04:26.965664+00", "observed_since": "2026-09-10", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a08e35-8414-7305-9a6a-618c687c35c5" }, { "id": "chg_01a08e35-8414-7869-add7-af3a51fb9e90", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-09-11", "occurred_at": "2026-09-11 02:04:26.965664+00", "observed_since": "2026-09-10", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a08e35-8414-7869-add7-af3a51fb9e90" }, { "id": "chg_01a08e35-8414-7d4e-ae54-f38c37fe4f94", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-09-11", "occurred_at": "2026-09-11 02:04:26.965664+00", "observed_since": "2026-09-10", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a08e35-8414-7d4e-ae54-f38c37fe4f94" }, { "id": "chg_01a08e35-8415-736b-a430-f5a3ce1d47b4", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-09-11", "occurred_at": "2026-09-11 02:04:26.965664+00", "observed_since": "2026-09-10", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a08e35-8415-736b-a430-f5a3ce1d47b4" }, { "id": "chg_01a0890f-ee10-70c9-8b50-9148a69f3b22", "kind": "check.verdict", "family": "auth-oauth", "subject_kind": "check", "subject": "auth-oauth", "subject_child": "", "from_code": "auth.rfc9728_invoke", "to_code": "auth.none_destructive", "from_value": "pass", "to_value": "fail", "materiality": "critical", "direction": "regression", "score_delta": null, "detail": { "tool": "forget" }, "occurred_on": "2026-09-10", "occurred_at": "2026-09-10 02:05:17.650634+00", "observed_since": "2026-09-09", "source": "scan", "summary": "Authorization (pass → fail)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0890f-ee10-70c9-8b50-9148a69f3b22" }, { "id": "chg_01a0890f-ee11-7214-a6df-748118ba7bb0", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-09-10", "occurred_at": "2026-09-10 02:05:17.650634+00", "observed_since": "2026-09-09", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0890f-ee11-7214-a6df-748118ba7bb0" }, { "id": "chg_01a0890f-ee11-7a2b-a1a0-386abd6e49ee", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-09-10", "occurred_at": "2026-09-10 02:05:17.650634+00", "observed_since": "2026-09-09", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0890f-ee11-7a2b-a1a0-386abd6e49ee" }, { "id": "chg_01a0890f-ee12-7032-b2ef-9538384d97a1", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-09-10", "occurred_at": "2026-09-10 02:05:17.650634+00", "observed_since": "2026-09-09", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0890f-ee12-7032-b2ef-9538384d97a1" }, { "id": "chg_01a0890f-ee12-74a5-a3af-a43e8846d42d", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-09-10", "occurred_at": "2026-09-10 02:05:17.650634+00", "observed_since": "2026-09-09", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0890f-ee12-74a5-a3af-a43e8846d42d" }, { "id": "chg_01a0890f-ee12-786f-82b3-e77b3134d8a6", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-09-10", "occurred_at": "2026-09-10 02:05:17.650634+00", "observed_since": "2026-09-09", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0890f-ee12-786f-82b3-e77b3134d8a6" }, { "id": "chg_01a083ea-6e20-7bac-b652-5663c207d65c", "kind": "check.verdict", "family": "auth-oauth", "subject_kind": "check", "subject": "auth-oauth", "subject_child": "", "from_code": "auth.none_destructive", "to_code": "auth.rfc9728_invoke", "from_value": "fail", "to_value": "pass", "materiality": "security", "direction": "improvement", "score_delta": null, "detail": {}, "occurred_on": "2026-09-09", "occurred_at": "2026-09-09 02:06:13.98644+00", "observed_since": "2026-09-08", "source": "scan", "summary": "Authorization (fail → pass)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a083ea-6e20-7bac-b652-5663c207d65c" }, { "id": "chg_01a083ea-6e21-7e73-9bca-e6e42c3070b6", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-09-09", "occurred_at": "2026-09-09 02:06:13.98644+00", "observed_since": "2026-09-08", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a083ea-6e21-7e73-9bca-e6e42c3070b6" }, { "id": "chg_01a083ea-6e22-74b8-8499-a5e0a524c8e5", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-09-09", "occurred_at": "2026-09-09 02:06:13.98644+00", "observed_since": "2026-09-08", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a083ea-6e22-74b8-8499-a5e0a524c8e5" }, { "id": "chg_01a083ea-6e22-7aca-9b66-a503791715e0", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-09-09", "occurred_at": "2026-09-09 02:06:13.98644+00", "observed_since": "2026-09-08", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a083ea-6e22-7aca-9b66-a503791715e0" }, { "id": "chg_01a083ea-6e23-70dd-a933-016cdd95780f", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-09-09", "occurred_at": "2026-09-09 02:06:13.98644+00", "observed_since": "2026-09-08", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a083ea-6e23-70dd-a933-016cdd95780f" }, { "id": "chg_01a083ea-6e23-7d2a-b732-c5be84c8cb47", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-09-09", "occurred_at": "2026-09-09 02:06:13.98644+00", "observed_since": "2026-09-08", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a083ea-6e23-7d2a-b732-c5be84c8cb47" }, { "id": "chg_01a07ec4-b46d-7352-8a5d-8ca58f787340", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-09-08", "occurred_at": "2026-09-08 02:06:55.509988+00", "observed_since": "2026-09-07", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a07ec4-b46d-7352-8a5d-8ca58f787340" }, { "id": "chg_01a07ec4-b46e-7b24-9168-f4a2c3e6e16e", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-09-08", "occurred_at": "2026-09-08 02:06:55.509988+00", "observed_since": "2026-09-07", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a07ec4-b46e-7b24-9168-f4a2c3e6e16e" }, { "id": "chg_01a07ec4-b46f-71c6-a212-b15cb77bec48", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-09-08", "occurred_at": "2026-09-08 02:06:55.509988+00", "observed_since": "2026-09-07", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a07ec4-b46f-71c6-a212-b15cb77bec48" }, { "id": "chg_01a07ec4-b46f-784e-b62c-d18a2f813511", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-09-08", "occurred_at": "2026-09-08 02:06:55.509988+00", "observed_since": "2026-09-07", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a07ec4-b46f-784e-b62c-d18a2f813511" }, { "id": "chg_01a07ec4-b46f-7cf5-8be9-0bb2d239067f", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-09-08", "occurred_at": "2026-09-08 02:06:55.509988+00", "observed_since": "2026-09-07", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a07ec4-b46f-7cf5-8be9-0bb2d239067f" }, { "id": "chg_01a0799e-27b1-7725-a785-844461b7e439", "kind": "check.verdict", "family": "auth-oauth", "subject_kind": "check", "subject": "auth-oauth", "subject_child": "", "from_code": "auth.rfc9728_invoke", "to_code": "auth.none_destructive", "from_value": "pass", "to_value": "fail", "materiality": "critical", "direction": "regression", "score_delta": null, "detail": { "tool": "forget" }, "occurred_on": "2026-09-07", "occurred_at": "2026-09-07 02:06:42.940031+00", "observed_since": "2026-09-06", "source": "scan", "summary": "Authorization (pass → fail)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0799e-27b1-7725-a785-844461b7e439" }, { "id": "chg_01a0799e-27b2-7b00-833f-0fb5a14ca8f0", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-09-07", "occurred_at": "2026-09-07 02:06:42.940031+00", "observed_since": "2026-09-06", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0799e-27b2-7b00-833f-0fb5a14ca8f0" }, { "id": "chg_01a0799e-27b3-7245-b6fd-e0adf745b8bb", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-09-07", "occurred_at": "2026-09-07 02:06:42.940031+00", "observed_since": "2026-09-06", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0799e-27b3-7245-b6fd-e0adf745b8bb" }, { "id": "chg_01a0799e-27b4-747a-8f9e-64732f8d150e", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-09-07", "occurred_at": "2026-09-07 02:06:42.940031+00", "observed_since": "2026-09-06", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0799e-27b4-747a-8f9e-64732f8d150e" }, { "id": "chg_01a0799e-27b5-733e-9f0f-3432a770a621", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-09-07", "occurred_at": "2026-09-07 02:06:42.940031+00", "observed_since": "2026-09-06", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0799e-27b5-733e-9f0f-3432a770a621" }, { "id": "chg_01a0799e-27b6-755a-92bd-f6e7fb8c718b", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-09-07", "occurred_at": "2026-09-07 02:06:42.940031+00", "observed_since": "2026-09-06", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0799e-27b6-755a-92bd-f6e7fb8c718b" }, { "id": "chg_01a07476-dc9f-7742-955e-51a052b27ac6", "kind": "check.reverified", "family": "auth-oauth", "subject_kind": "check", "subject": "auth-oauth", "subject_child": "", "from_code": "auth.none_unlisted", "to_code": "auth.rfc9728_invoke", "from_value": "unverified", "to_value": "pass", "materiality": "security", "direction": "improvement", "score_delta": null, "detail": {}, "occurred_on": "2026-09-06", "occurred_at": "2026-09-06 02:05:41.848371+00", "observed_since": "2026-09-05", "source": "scan", "summary": "Authorization (unverified → pass)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a07476-dc9f-7742-955e-51a052b27ac6" }, { "id": "chg_01a07476-dca0-7202-9619-6aa1c043671d", "kind": "check.reverified", "family": "tool-safety-injection", "subject_kind": "check", "subject": "tool-safety-injection", "subject_child": "", "from_code": "toolsafety.unreachable", "to_code": "toolsafety.injection_clean", "from_value": "unverified", "to_value": "pass", "materiality": "security", "direction": "improvement", "score_delta": null, "detail": {}, "occurred_on": "2026-09-06", "occurred_at": "2026-09-06 02:05:41.848371+00", "observed_since": "2026-09-05", "source": "scan", "summary": "Injection markers (unverified → pass)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a07476-dca0-7202-9619-6aa1c043671d" }, { "id": "chg_01a07476-dca0-7b7a-a9de-1ba0ff460712", "kind": "check.verdict", "family": "stability", "subject_kind": "check", "subject": "stability", "subject_child": "", "from_code": "stability.churn", "to_code": "stability.stable", "from_value": "fail", "to_value": "pass", "materiality": "security", "direction": "improvement", "score_delta": null, "detail": {}, "occurred_on": "2026-09-06", "occurred_at": "2026-09-06 02:05:41.848371+00", "observed_since": "2026-09-05", "source": "scan", "summary": "Stability (fail → pass)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a07476-dca0-7b7a-a9de-1ba0ff460712" }, { "id": "chg_01a06f50-9654-7dc5-b9ca-06f9851f4b51", "kind": "check.verdict", "family": "stability", "subject_kind": "check", "subject": "stability", "subject_child": "", "from_code": "stability.stable", "to_code": "stability.churn", "from_value": "pass", "to_value": "fail", "materiality": "security", "direction": "regression", "score_delta": null, "detail": { "days": "30", "added": "0", "breaks": "0", "removed": "39", "auth_transport": "0" }, "occurred_on": "2026-09-05", "occurred_at": "2026-09-05 02:05:47.299828+00", "observed_since": "2026-09-04", "source": "scan", "summary": "Stability (pass → fail)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06f50-9654-7dc5-b9ca-06f9851f4b51" }, { "id": "chg_01a06f50-9656-77ce-bc97-38614bc0324f", "kind": "check.unverifiable", "family": "auth-oauth", "subject_kind": "check", "subject": "auth-oauth", "subject_child": "", "from_code": "auth.none_destructive", "to_code": "auth.none_unlisted", "from_value": "fail", "to_value": "unverified", "materiality": "security", "direction": "regression", "score_delta": null, "detail": {}, "occurred_on": "2026-09-05", "occurred_at": "2026-09-05 02:05:47.299828+00", "observed_since": "2026-09-04", "source": "scan", "summary": "Authorization (fail → unverified)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06f50-9656-77ce-bc97-38614bc0324f" }, { "id": "chg_01a06f50-9656-7e1a-ad63-54ac407cbe0d", "kind": "check.unverifiable", "family": "tool-safety-injection", "subject_kind": "check", "subject": "tool-safety-injection", "subject_child": "", "from_code": "toolsafety.injection_clean", "to_code": "toolsafety.unreachable", "from_value": "pass", "to_value": "unverified", "materiality": "security", "direction": "regression", "score_delta": null, "detail": {}, "occurred_on": "2026-09-05", "occurred_at": "2026-09-05 02:05:47.299828+00", "observed_since": "2026-09-04", "source": "scan", "summary": "Tool safety (pass → unverified)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06f50-9656-7e1a-ad63-54ac407cbe0d" }, { "id": "chg_01a06a29-e21a-736d-9dbd-3d2c553ec532", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-09-04", "occurred_at": "2026-09-04 02:05:24.759478+00", "observed_since": "2026-09-03", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06a29-e21a-736d-9dbd-3d2c553ec532" }, { "id": "chg_01a06a29-e220-7300-abd6-0f5e492ee851", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-09-04", "occurred_at": "2026-09-04 02:05:24.759478+00", "observed_since": "2026-09-03", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06a29-e220-7300-abd6-0f5e492ee851" }, { "id": "chg_01a06a29-e223-79dd-9bac-9bb56fcaef89", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-09-04", "occurred_at": "2026-09-04 02:05:24.759478+00", "observed_since": "2026-09-03", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06a29-e223-79dd-9bac-9bb56fcaef89" }, { "id": "chg_01a06a29-e226-7644-b2b3-052e8ab953cc", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-09-04", "occurred_at": "2026-09-04 02:05:24.759478+00", "observed_since": "2026-09-03", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06a29-e226-7644-b2b3-052e8ab953cc" }, { "id": "chg_01a06a29-e226-7be2-a4e3-524cd2ff7fdb", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "entity_profile", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "entity_profile" }, "occurred_on": "2026-09-04", "occurred_at": "2026-09-04 02:05:24.759478+00", "observed_since": "2026-09-03", "source": "scan", "summary": "Tool “entity_profile” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06a29-e226-7be2-a4e3-524cd2ff7fdb" }, { "id": "chg_01a06a29-e22c-77af-af9a-bcc1ee434e5f", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-09-04", "occurred_at": "2026-09-04 02:05:24.759478+00", "observed_since": "2026-09-03", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06a29-e22c-77af-af9a-bcc1ee434e5f" }, { "id": "chg_01a06503-b19e-77a2-bc77-66c5a396e4ec", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-09-03", "occurred_at": "2026-09-03 02:05:35.970062+00", "observed_since": "2026-09-02", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06503-b19e-77a2-bc77-66c5a396e4ec" }, { "id": "chg_01a06503-b19f-73b8-8021-b6ef635c20c0", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-09-03", "occurred_at": "2026-09-03 02:05:35.970062+00", "observed_since": "2026-09-02", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06503-b19f-73b8-8021-b6ef635c20c0" }, { "id": "chg_01a06503-b19f-7860-8976-590a7614312a", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-09-03", "occurred_at": "2026-09-03 02:05:35.970062+00", "observed_since": "2026-09-02", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06503-b19f-7860-8976-590a7614312a" }, { "id": "chg_01a06503-b19f-7dc7-8776-1ee32b59a1b1", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-09-03", "occurred_at": "2026-09-03 02:05:35.970062+00", "observed_since": "2026-09-02", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06503-b19f-7dc7-8776-1ee32b59a1b1" }, { "id": "chg_01a06503-b1a0-7270-a106-0d7b6a34035a", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "polymarket_kalshi_spread", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "polymarket_kalshi_spread" }, "occurred_on": "2026-09-03", "occurred_at": "2026-09-03 02:05:35.970062+00", "observed_since": "2026-09-02", "source": "scan", "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06503-b1a0-7270-a106-0d7b6a34035a" }, { "id": "chg_01a06503-b1a0-773c-a54c-7c3e3bc3cb0e", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-09-03", "occurred_at": "2026-09-03 02:05:35.970062+00", "observed_since": "2026-09-02", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a06503-b1a0-773c-a54c-7c3e3bc3cb0e" }, { "id": "chg_01a05fdd-2a51-726c-a6ac-e72e08928997", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-09-02", "occurred_at": "2026-09-02 02:05:24.839225+00", "observed_since": "2026-09-01", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05fdd-2a51-726c-a6ac-e72e08928997" }, { "id": "chg_01a05fdd-2a52-7c9c-a3b0-887a085db5e1", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-09-02", "occurred_at": "2026-09-02 02:05:24.839225+00", "observed_since": "2026-09-01", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05fdd-2a52-7c9c-a3b0-887a085db5e1" }, { "id": "chg_01a05fdd-2a53-71d9-9687-7fb8871bd7f6", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-09-02", "occurred_at": "2026-09-02 02:05:24.839225+00", "observed_since": "2026-09-01", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05fdd-2a53-71d9-9687-7fb8871bd7f6" }, { "id": "chg_01a05fdd-2a54-79ac-8ed7-849fa099c18b", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-09-02", "occurred_at": "2026-09-02 02:05:24.839225+00", "observed_since": "2026-09-01", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05fdd-2a54-79ac-8ed7-849fa099c18b" }, { "id": "chg_01a05fdd-2a54-7d75-a410-6164638cf216", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "resolve_entity", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "resolve_entity" }, "occurred_on": "2026-09-02", "occurred_at": "2026-09-02 02:05:24.839225+00", "observed_since": "2026-09-01", "source": "scan", "summary": "Tool “resolve_entity” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05fdd-2a54-7d75-a410-6164638cf216" }, { "id": "chg_01a05fdd-2a55-783f-ae2c-dc88f849ebc8", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-09-02", "occurred_at": "2026-09-02 02:05:24.839225+00", "observed_since": "2026-09-01", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05fdd-2a55-783f-ae2c-dc88f849ebc8" }, { "id": "chg_01a05ab7-0ec2-79ec-a2c8-db721fe4f2ee", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-09-01", "occurred_at": "2026-09-01 02:05:41.406533+00", "observed_since": "2026-08-31", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05ab7-0ec2-79ec-a2c8-db721fe4f2ee" }, { "id": "chg_01a05ab7-0ec5-75ef-adec-cb6a5d6a2be8", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-09-01", "occurred_at": "2026-09-01 02:05:41.406533+00", "observed_since": "2026-08-31", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05ab7-0ec5-75ef-adec-cb6a5d6a2be8" }, { "id": "chg_01a05ab7-0ec5-7c40-ae25-efe9a1eafe65", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-09-01", "occurred_at": "2026-09-01 02:05:41.406533+00", "observed_since": "2026-08-31", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05ab7-0ec5-7c40-ae25-efe9a1eafe65" }, { "id": "chg_01a05ab7-0ec6-71c4-807f-6090047f70fe", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "contest_standings", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "contest_standings" }, "occurred_on": "2026-09-01", "occurred_at": "2026-09-01 02:05:41.406533+00", "observed_since": "2026-08-31", "source": "scan", "summary": "Tool “contest_standings” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05ab7-0ec6-71c4-807f-6090047f70fe" }, { "id": "chg_01a05ab7-0ec8-704a-9df1-d77160928fd0", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-09-01", "occurred_at": "2026-09-01 02:05:41.406533+00", "observed_since": "2026-08-31", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05ab7-0ec8-704a-9df1-d77160928fd0" }, { "id": "chg_01a05ab7-0ec8-753e-9c14-20ccab35d81b", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "polymarket_kalshi_spread", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "polymarket_kalshi_spread" }, "occurred_on": "2026-09-01", "occurred_at": "2026-09-01 02:05:41.406533+00", "observed_since": "2026-08-31", "source": "scan", "summary": "Tool “polymarket_kalshi_spread” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05ab7-0ec8-753e-9c14-20ccab35d81b" }, { "id": "chg_01a05ab7-0ec8-7bae-9813-fed9a2c6d8e4", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-09-01", "occurred_at": "2026-09-01 02:05:41.406533+00", "observed_since": "2026-08-31", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05ab7-0ec8-7bae-9813-fed9a2c6d8e4" }, { "id": "chg_01a05590-937e-7753-b2e5-406707f86092", "kind": "check.verdict", "family": "auth-oauth", "subject_kind": "check", "subject": "auth-oauth", "subject_child": "", "from_code": "auth.rfc9728_invoke", "to_code": "auth.none_destructive", "from_value": "pass", "to_value": "fail", "materiality": "critical", "direction": "regression", "score_delta": null, "detail": { "tool": "forget" }, "occurred_on": "2026-08-31", "occurred_at": "2026-08-31 02:05:33.373938+00", "observed_since": "2026-08-30", "source": "scan", "summary": "Authorization (pass → fail)", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05590-937e-7753-b2e5-406707f86092" }, { "id": "chg_01a05590-937f-72ab-b435-d539b34022ca", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-08-31", "occurred_at": "2026-08-31 02:05:33.373938+00", "observed_since": "2026-08-30", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05590-937f-72ab-b435-d539b34022ca" }, { "id": "chg_01a05590-937f-7770-a75a-a3f2e54bf318", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-08-31", "occurred_at": "2026-08-31 02:05:33.373938+00", "observed_since": "2026-08-30", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05590-937f-7770-a75a-a3f2e54bf318" }, { "id": "chg_01a05590-937f-7ba4-bcb1-c7c919b86c64", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_grounded", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_grounded" }, "occurred_on": "2026-08-31", "occurred_at": "2026-08-31 02:05:33.373938+00", "observed_since": "2026-08-30", "source": "scan", "summary": "Tool “ask_pipeworx_grounded” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05590-937f-7ba4-bcb1-c7c919b86c64" }, { "id": "chg_01a05590-9380-708c-8dab-02880dec150b", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "deep_research", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "deep_research" }, "occurred_on": "2026-08-31", "occurred_at": "2026-08-31 02:05:33.373938+00", "observed_since": "2026-08-30", "source": "scan", "summary": "Tool “deep_research” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05590-9380-708c-8dab-02880dec150b" }, { "id": "chg_01a05590-9380-74b5-a4fb-df8e5e907c04", "kind": "server.instructions_changed", "family": "", "subject_kind": "server", "subject": "instructions", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": {}, "occurred_on": "2026-08-31", "occurred_at": "2026-08-31 02:05:33.373938+00", "observed_since": "2026-08-30", "source": "scan", "summary": "The server rewrote its instructions, which are the text every model session reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a05590-9380-74b5-a4fb-df8e5e907c04" }, { "id": "chg_01a0506a-74ed-7b25-94aa-73f81b88dc4b", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx" }, "occurred_on": "2026-08-30", "occurred_at": "2026-08-30 02:05:49.104179+00", "observed_since": "2026-08-29", "source": "scan", "summary": "Tool “ask_pipeworx” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0506a-74ed-7b25-94aa-73f81b88dc4b" }, { "id": "chg_01a0506a-74ee-76c7-b9fb-521f29cff6eb", "kind": "tool.description_changed", "family": "", "subject_kind": "tool", "subject": "ask_pipeworx_beta", "subject_child": "", "from_code": null, "to_code": null, "from_value": null, "to_value": null, "materiality": "security", "direction": "neutral", "score_delta": null, "detail": { "tool": "ask_pipeworx_beta" }, "occurred_on": "2026-08-30", "occurred_at": "2026-08-30 02:05:49.104179+00", "observed_since": "2026-08-29", "source": "scan", "summary": "Tool “ask_pipeworx_beta” rewrote its description, which is the text the model reads", "link": "https://verifymcp.io/servers/pipeworx-io-codeforces/codeforces-mcp#chg-chg_01a0506a-74ee-76c7-b9fb-521f29cff6eb" } ], "days": [ { "date": "2026-09-27", "total": 30, "delta": -57, "tracked": true, "explained": true, "beyond_event_horizon": false, "attribution": null, "event_count": 6 }, { "date": "2026-09-26", "total": 87, "delta": 57, "tracked": true, "explained": true, "beyond_event_horizon": false, "attribution": null, "event_count": 59 }, { "date": "2026-09-25", "total": 30, "delta": 0, "tracked": true, "explained": true, "beyond_event_horizon": false, "attribution": null, "event_count": 1 }, { "date": "2026-09-24", "total": 30, "delta": -12, "tracked": true, "explained": true, "beyond_event_horizon": false, "attribution": null, "event_count": 2 }, { "date": "2026-09-23", "total": 42, "delta": 0, "tracked": true, "explained": true, "beyond_event_horizon": false, "attribution": null, "event_count": 1 }, { "date": "2026-09-22", "total": 42, "delta": 0, "tracked": true, "explained": true, "beyond_event_horizon": false, "attribution": null, "event_count": 1 }, { "date": "2026-09-21", "total": 42, "delta": 0, "tracked": true, "explained": true, "beyond_event_horizon": false, "attribution": null, "event_count": 1 }, { "date": "2026-09-20", "total": 42, "delta": 0, "tracked": true, "explained": true, "beyond_event_horizon": false, "attribution": null, "event_count": 1 } ] }