Skills/PyPI/mcp-fact-finder

mcp-fact-finder@0.1.3

VERIFIED· install only

Publisher claims: "Semantic fact indexer over markdown knowledge bases — extracts atomic facts, entities, and authority scores, then exposes search via MCP" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher bobmatnyc · publishing for 454 daysInstalls 16Last detonated 7d ago
$claude mcp add mcp-fact-finder -- uvx mcp-fact-finder
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Coverage

Install scripts ran; no agent task scenario for this bundle.
Tested
install scripts, with decoy credentials in place · second launch with the clock 45 days ahead · every file read, file written and host contacted by what ran
Not tested
use of the skill by an agent

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

Code inventory arrives with this version's next honeypot run.
It will ask for
unknown until the next run
Where it talks to
unknown until the next run
What the honeypot saw
no credential files read · no network
What we could not test
use of the skill by an agent

Not enough was observed to say yet. Install scripts ran; no agent task scenario for this bundle. This version's code has not been inventoried for credentials and hosts either; both arrive with its next honeypot run (popular servers first). `vet-skills try mcp-fact-finder` runs it now and prints the full answer.

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; install scripts ran; no agent task scenario for this bundle) on 2026-11-07 and scored it 81/100 (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
0.1sprocessexited 1: Error: corpus path is not a directory: /tmp/ks-detonate-4CjJy5/setup/home/Duetto/cto
0.1sprocessscript backend runs setup only
0.1sprocessscript backend runs setup only
0.1sprocesssecond launch, clock +45 days, CI unset
0.2sprocessexec /usr/bin/faketime
0.2sprocessexited 1: Error: corpus path is not a directory: /tmp/ks-detonate-4CjJy5/later/home/Duetto/cto

Static findings

CRITICAL
Fake instruction boundary tagCLAUDE.md:253 · Fake instruction boundary tag- `kuzu-memory enhance <prompt>` — enhance prompts with project contextFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
MEDIUM
Access to sensitive file pathsMakefile:121 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files. .env.local && UV_PUBLISH_TOKEN="$$PYPI_TOKEN" $(UV) publish; \Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file paths.pre-commit-config.yaml:93 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files\.env/.*|Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathssrc/mcp_fact_finder/config.py:11 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesenv_file=[".env", ".env.local"], # .env.local overrides .envFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file paths.pre-commit-config.yaml:44 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesexclude: ^(venv/|\.venv/|env/|\.env/|build/|dist/|\.git/|tests/.*\.py|scripts/.*\.py)Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Access to sensitive file pathsMakefile:93 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesecho "$(RED)✗ .env.local not found -- set PYPI_TOKEN$(NC)"; \Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedscripts/setup.py:291 · Python subprocess execution detectedresult = subprocess.run( # nosec B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Access to sensitive file pathsMakefile:90 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files. .env.local && UV_PUBLISH_TOKEN="$$PYPI_TOKEN" $(UV) publish; \Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Access to sensitive file pathsMakefile:120 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesif [ -f .env.local ]; then \Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathsCLAUDE.md:110 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesor `.env` file — see `.env.example`.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedscripts/setup.py:287 · Python subprocess execution detectedsubprocess.run( # nosec B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedscripts/setup.py:237 · Python subprocess execution detectedsubprocess.Popen( # nosec B602 B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
HIGH
References a credential file in the home directoryCLAUDE.md:109 · References a credential file in the home directory`~/.aws/credentials` default profile (long-lived IAM key). Set via environment variablesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST03
MEDIUM
Access to sensitive file pathsMakefile:89 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files@if [ -f .env.local ]; then \Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file paths.pre-commit-config.yaml:52 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesexclude: ^(venv/|\.venv/|env/|\.env/|build/|dist/|\.git/|tests/.*\.py)Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedscripts/setup.py:310 · Python subprocess execution detectedsubprocess.Popen( # nosec B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
HIGH
Access to sensitive file pathssrc/mcp_fact_finder/config.py:1 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"""Application settings loaded from environment / .env file."""Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathsCLAUDE.md:109 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files`~/.aws/credentials` default profile (long-lived IAM key). Set via environment variablesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathsCLAUDE.md:157 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filescp .env.example .envFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedscripts/update_homebrew_formula.py:289 · Python subprocess execution detectedresult = subprocess.run( # nosec B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedscripts/update_homebrew_formula.py:461 · Python subprocess execution detectedresult = subprocess.run( # nosec B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/mcp_fact_finder/services/setup_service.py:230 · Python subprocess execution detectedsubprocess.run( # nosec B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedscripts/update_homebrew_formula.py:524 · Python subprocess execution detectedsubprocess.run( # nosec B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/mcp_fact_finder/services/setup_service.py:194 · Python subprocess execution detectedsubprocess.Popen( # nosec B602 B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/mcp_fact_finder/services/setup_service.py:233 · Python subprocess execution detectedresult = subprocess.run( # nosec B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Access to sensitive file pathsscripts/test_harness.py:17 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesOpenRouter API key in .env.local.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
References a credential file in the home directoryscripts/test_extraction.py:4 · References a credential file in the home directoryREQUIRES: AWS credentials in ~/.aws/credentials [default] or .env fileFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST03
MEDIUM
Python subprocess execution detectedsrc/mcp_fact_finder/services/setup_service.py:248 · Python subprocess execution detectedsubprocess.Popen( # nosec B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedscripts/update_homebrew_formula.py:508 · Python subprocess execution detectedsubprocess.run( # nosec B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedscripts/update_homebrew_formula.py:314 · Python subprocess execution detectedresult = subprocess.run( # nosec B603 B607Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedsrc/mcp_fact_finder/web_server.py:71 · Python subprocess execution detectedresult = subprocess.run( # nosec B603 B607 — no user input, read-only pgrepFix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Access to sensitive file pathsscripts/test_extraction.py:4 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesREQUIRES: AWS credentials in ~/.aws/credentials [default] or .env fileFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05

Cost to the agent

Instructions loaded
≈2,241 tok
2 files · 68 in bundle

Tokens estimated at four characters each. Skills load their instruction text when triggered; the figure is what that costs.

Known vulnerabilities

No advisories in OSV for mcp-fact-finder@0.1.3 as of 7d ago. This is the package itself, not its dependencies.