Collusion Sentinel for Agent Markets
REMOTE · TEXTFORAGENTS.COM
Emergent collusion leaves no agreement to find — it lives in the history.
Available components
Last scanned (4 hours ago)
Scores higher than 46% of remote servers
Reachable. Last reached 23 Oct 2026.
Category Security
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 3 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability54
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 197 tokens (~65/item across 3 items; 3 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability check failed: schema churn in the 2 days we've observed: 0 tool removals, 2 breaking changes, 0 auth/transport breaks, 0 additions. See how to fix → Fail
Tool Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities40
- Spec-recency check failed: implements MCP spec 2025-03-26; the latest is 2026-07-28. See how to fix → Fail
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 22 Oct 26 +1
- Stability: unverified → fail ▼ security
- Tool “sentinel_certify” rewrote its description, which is the text the model reads security
- Schema quality: 56 → 65 ▼ functional
- “sentinel_certify” added a required parameter “model”, so existing callers break ▼ functional
- “sentinel_certify” added a required parameter “prompt_hash”, so existing callers break ▼ functional
- “sentinel_control_plan” added a required parameter “audit_id”, so existing callers break ▼ functional
- “sentinel_control_plan” dropped the required parameter “score_result” ▼ functional
- Server version: 1.0.0 → 1.1.0 functional
- 21 Oct 26 57
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 23 Oct 2026 · Probed https://textforagents.com/products/collusion-sentinel-agent-markets/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=textforagents.com | CN=YE2,O=Let's Encrypt,C=US | 15 Oct 2026 | 13 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 66d021cf7bcd281266ac6de4cea43642f85 |
| SANs: textforagents.com, www.textforagents.com | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of textforagents.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| textforagents.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains; preload |
| content-security-policy | default-src 'self'; frame-ancestors 'none'; base-uri 'self'; form-action 'self' |
| x-content-type-options | nosniff |
| x-frame-options | DENY |
| referrer-policy | no-referrer |
| permissions-policy | interest-cohort=(), geolocation=(), microphone=(), camera=(), payment=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://textforagents.com/products/collusion-sentinel-agent-markets/mcp | Verified | 200 | |
| http (plaintext) | http://textforagents.com/products/collusion-sentinel-agent-markets/mcp | HTTPS enforced | 301 | https://textforagents.com/products/collusion-sentinel-agent-markets/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
sentinel_audit ~80
Score a pair/population joint price history (mode=prices) or a verifier pair's acceptance history (mode=verifier) for collusion signatures. $0.05/audit x402 after the one-time 100-audit grant; degenerate histories refused, never charged.
| Name | Type | Req | Description |
|---|---|---|---|
| mode | string | – | – |
| rounds | array | yes | – |
No output schema declared.
No examples provided.
sentinel_certify ~80
Run the tempt-to-violate certification battery for a subject ($25/certificate x402; battery model inference subject-pays / BYOK). model and prompt_hash are required — the certificate hash binds them.
| Name | Type | Req | Description |
|---|---|---|---|
| kind | string | yes | – |
| model | string | yes | – |
| prompt_hash | string | yes | – |
| subject | string | yes | – |
No output schema declared.
No examples provided.
sentinel_control_plan ~37
Score-keyed counterparty rotation + memory hygiene plan (included).
| Name | Type | Req | Description |
|---|---|---|---|
| audit_id | string | yes | – |
| pair | string | – | – |
No output schema declared.
No examples provided.
How do I install the Collusion Sentinel for Agent Markets MCP server?
Collusion Sentinel for Agent Markets is a hosted endpoint at https://textforagents.com/products/collusion-sentinel-agent-markets/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · textforagents.com
claude mcp add --transport http com-textforagents-collusion-sentinel-agent-marke 'https://textforagents.com/products/collusion-sentinel-agent-markets/mcp'
What is the Collusion Sentinel for Agent Markets MCP server?
Collusion Sentinel for Agent Markets is an MCP server listed in the public MCP registry as com.textforagents/collusion-sentinel-agent-markets. Emergent collusion leaves no agreement to find, it lives in the history. This page covers its hosted endpoint (https://textforagents.com/products/collusion-sentinel-agent-markets/mcp).
Is the Collusion Sentinel for Agent Markets MCP server safe to use?
Collusion Sentinel for Agent Markets scores 58 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Collusion Sentinel for Agent Markets MCP server expose?
Collusion Sentinel for Agent Markets exposes 3 tools: sentinel_audit, sentinel_certify, sentinel_control_plan. Their descriptions and schemas cost roughly 197 tokens of context every time the server is loaded.
Does the Collusion Sentinel for Agent Markets MCP server require authentication?
No. We connected to Collusion Sentinel for Agent Markets without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Collusion Sentinel for Agent Markets MCP server still maintained?
Collusion Sentinel for Agent Markets is still listed as active in the MCP registry. We last reached this channel on 23 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.