Telys — on-device memory
PYPI · TELYS · SCANNED SEP 20
Private on-device memory & retrieval for AI assistants — offline vector + lexical search.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security88
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- Install-script risk not yet assessed.Unverified
- 0 of 5 dependencies flagged as unhealthy. View diagnostics → Pass
Provenance & Transparency19
- Repository check failed: the declared repository URL returned HTTP 404. See how to fix → View diagnostics → Fail
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (Apache-2.0).Pass
- Actively maintained (last published 33 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability71
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 1095 tokens (~57/item across 19 items; 19 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management90
- Stability observed for 27 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage72
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 16% of tool parameters carry a description.Partial
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "telys_delete" implies "delete" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 19 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the Telys — on-device memory MCP server?
Telys — on-device memory runs locally as a PyPI package, launched with uvx telys. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
pypi · telys
claude mcp add thyn-ai-telys -- uvx telys
{
"mcpServers": {
"thyn-ai-telys": {
"command": "uvx",
"args": [
"telys"
]
}
}
} {
"servers": {
"thyn-ai-telys": {
"command": "uvx",
"args": [
"telys"
]
}
}
} codex mcp add thyn-ai-telys -- uvx telys
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"thyn-ai-telys": {
"type": "local",
"command": [
"uvx",
"telys"
],
"enabled": true
}
}
} openclaw mcp add thyn-ai-telys --command uvx --arg telys
mcp_servers:
thyn-ai-telys:
command: "uvx"
args: ["telys"] {
"McpServers": {
"thyn-ai-telys": {
"Transport": "stdio",
"Command": "uvx",
"Arguments": [
"telys"
]
}
}
} assistant mcp add thyn-ai-telys -t stdio -c uvx -a telys
{
"mcpServers": {
"thyn-ai-telys": {
"command": "uvx",
"args": [
"telys"
]
}
}
} 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.
- 20 Sept 26 +16
- Malware scan: unverified → pass ▲ security
- 19 Sept 26 0
- Package version: 0.1.0b4 → 0.1.4 functional
- 18 Sept 26 −2
- Stability: pass → 0.83 functional
- 16 Sept 26 0
- Stability: 0.97 → pass security
- 15 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 14 Sept 26 −1
- Stability: pass → 0.93 functional
- 13 Sept 26 0
- Stability: 0.97 → pass security
- 12 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
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 20 Sept 2026 · Analysed pypi/telys@0.1.4
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | pypi |
Background: How many MCP packages publish verified provenance →
Dependencies 5 packages
| Packages resolved | 5 |
|---|---|
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
telys_add ~53
Add text documents to a Telys memory collection (created if absent).
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
| ids | array | – | – |
| metadata | array | – | – |
| texts | array | yes | – |
No output schema declared.
No examples provided.
telys_build_ivf ~52
Build per-partition IVF indexes; calibrates nprobe to a recall floor.
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
| min_rows | integer | – | – |
| target_recall | number | – | – |
No output schema declared.
No examples provided.
telys_build_lexical ~51
Fit BM25 lexical index over retained tokens (needs lexical=True at create-time).
| Name | Type | Req | Description |
|---|---|---|---|
| b | number | – | – |
| collection | string | yes | – |
| k1 | number | – | – |
No output schema declared.
No examples provided.
telys_compact ~30
Flush tombstones + merge delta segment into the base layout.
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
No output schema declared.
No examples provided.
telys_count ~49
Return the live row count (post-tombstone) for a collection, optionally where-scoped.
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
| where | object | – | optional single-key equality filter |
No output schema declared.
No examples provided.
telys_create_collection ~34
Create a Telys memory collection.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | – |
| partition_by | string | – | – |
No output schema declared.
No examples provided.
telys_delete ~38
Tombstone rows by external id so they no longer appear in queries.
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
| ids | array | yes | – |
No output schema declared.
No examples provided.
telys_get ~89
Exact row lookup by external id (no similarity search). Returns stored metadata and, for auto-indexed repo rows, the exact source slice re-read from disk via the row's path + line range.
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
| ids | array | yes | – |
| with_metadata | boolean | – | – |
| with_text | boolean | – | re-read the source slice for repo-index rows |
No output schema declared.
No examples provided.
telys_ids ~44
Return live external ids in a collection, optionally scoped by a where filter.
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
| where | object | – | optional single-key equality filter |
No output schema declared.
No examples provided.
telys_index_repo ~188
Walk a repo directory (respects .gitignore when the workspace is a git checkout; otherwise skips common build/dep dirs), chunk each text file (windowed or file mode), and ingest into a Telys collection. Idempotent + incremental: a re-call re-fingerprints per-file (size, mtime) and only re-embeds files that actually changed since the last index. Removed files get tombstoned.
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | – | – |
| force | boolean | – | ignore the fingerprint cache and rebuild every file |
| max_file_bytes | integer | – | – |
| max_files | integer | – | – |
| max_seconds | integer | – | – |
| mode | string | – | – |
| path | string | – | repo root (defaults to server workspace / CWD) |
| window_lines | integer | – | – |
| window_overlap_lines | integer | – | – |
No output schema declared.
No examples provided.
telys_list_collections ~19
List Telys memory collections.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
telys_repo_search ~85
Search the auto-indexed repo collection. Runs telys_index_repo against the server workspace on every call — cheap on no-change, incremental on file edits — so search results are always fresh.
| Name | Type | Req | Description |
|---|---|---|---|
| path_hint | string | – | exact path (relative to repo root) to scope the search |
| query | string | yes | – |
| top_k | integer | – | – |
No output schema declared.
No examples provided.
telys_search ~56
Semantic + lexical search over a Telys memory collection.
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
| query | string | yes | – |
| top_k | integer | – | – |
| where | object | – | optional single-key equality filter |
No output schema declared.
No examples provided.
telys_search_lexical ~78
On-device BM25 lexical search (requires the collection to have been created with lexical=True + build_lexical run).
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
| explain | boolean | – | – |
| query | string | yes | – |
| top_k | integer | – | – |
| where | object | – | optional single-key equality filter |
No output schema declared.
No examples provided.
telys_stats ~26
Stats for a Telys memory collection.
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
No output schema declared.
No examples provided.
telys_tune ~55
Produce (and optionally apply) a TuningPlan via the collection's Tuner.
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
| dry_run | boolean | – | true never applies, false always applies, omit = tuner default |
No output schema declared.
No examples provided.
telys_update ~54
Replace the vector/metadata of EXISTING ids by re-embedding new texts.
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
| ids | array | yes | – |
| metadata | array | – | – |
| texts | array | yes | – |
No output schema declared.
No examples provided.
telys_upsert ~66
Add-or-replace text rows by id (versioned update; never a duplicate physical row).
| Name | Type | Req | Description |
|---|---|---|---|
| collection | string | yes | – |
| ids | array | yes | – |
| metadata | array | – | – |
| partition_by | string | – | – |
| texts | array | yes | – |
No output schema declared.
No examples provided.
telys_workspace_info ~28
Report the server's configured workspace, repo_id, indexed collection, and file count.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
What is the Telys — on-device memory MCP server?
Telys — on-device memory is an MCP server listed in the public MCP registry as io.github.thyn-ai/telys. Private on-device memory & retrieval for AI assistants, offline vector + lexical search. This page covers its PyPI package (telys).
Is the Telys — on-device memory MCP server safe to use?
Telys — on-device memory scores 70 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. 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 Telys — on-device memory MCP server expose?
Telys — on-device memory exposes 19 tools: telys_search, telys_add, telys_create_collection, telys_list_collections, telys_stats, and 14 more. Their descriptions and schemas cost roughly 1,095 tokens of context every time the server is loaded.
Is the Telys — on-device memory MCP server still maintained?
Telys — on-device memory is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the Telys — on-device memory MCP server under?
Telys — on-device memory declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.