Skills/PyPI/mnemo-mcp

mnemo-mcp@2.21.0

VERIFIED· not started

Publisher claims: "Open-source MCP Server for persistent AI memory" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher n24q02m · publishing for 371 daysInstalls 7,888Last detonated 3d ago
$claude mcp add mnemo-mcp -- uvx mnemo-mcp
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Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
HULL_CHAT_API_KEYMNEMO_AUTH_TOKEN or --oauthConfiguration, not credentials: ARCHIVE_TRIGGER_EVERY, COMPRESSION_ENABLED, DEDUP_THRESHOLD, FASTRETRIEVAL_CACHE_PATH, MNEMO_DB_PATH, MNEMO_HOST, MNEMO_PORT, MNEMO_REFLECT_CAP_USD, MNEMO_REFLECT_MODEL, TEMPORAL_ENTITY_RESOLUTION_THRESHOLD
Where it talks to
no vendor host named in the codeAlso sqlite.org — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names sqlite.org as well as its own vendor. The guard injects HULL_CHAT_API_KEY, MNEMO_AUTH_TOKEN only into requests to the host you bind (and its subdomains) and refuses the rest.

$vet-skills run --net declared -- uvx mnemo-mcp

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-11 and scored it 93/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.1sprocessdependency install exit 1 ·
0.1sclaimednot started: dependency install failed (exit 1); the server itself was not observed
0.1sprocessscript backend runs setup only
0.1sprocessno install scripts to re-run

Static findings

LOW
Instructs the agent to modify its persistent memory or instruction filesPKG-INFO:266 · Instructs the agent to modify its persistent memory or instruction files · informational: not an instruction file| PostToolUse hook (opt-in) | `CAPTURE_AUTO_ENABLED=true` | Hint `memory-commit` after Write/Edit of CLAUDE.md / AGENTS.md / ARCHITECTURE.md / docs/*.md |Fix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
LOW
Instructs the agent to modify its persistent memory or instruction filesREADME.md:230 · Instructs the agent to modify its persistent memory or instruction files · informational: not an instruction file| PostToolUse hook (opt-in) | `CAPTURE_AUTO_ENABLED=true` | Hint `memory-commit` after Write/Edit of CLAUDE.md / AGENTS.md / ARCHITECTURE.md / docs/*.md |Fix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
MEDIUM
Process kill commandsrc/mnemo/config.py:74 · Process kill command — agent can terminate processes- DISABLE_LOCAL_EMBED / DISABLE_LOCAL_RERANK: kill the local ONNXFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05

Cost to the agent

Instructions loaded
≈47 tok
1 file · 48 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for mnemo-mcp@2.21.0 as of 3d ago. This is the package itself, not its dependencies.