Skills/PyPI/parsimony-mcp

parsimony-mcp@0.3.0

VERIFIED· not started

Publisher claims: "MCP (Model Context Protocol) server adapter for parsimony — exposes a Connectors collection as MCP tools over stdio." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher ockham-sh · publishing for 208 daysInstalls 64Last detonated 4 h ago
$claude mcp add parsimony-mcp -- uvx parsimony-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
no credential variables read in the code
Where it talks to
no vendor host named in the code
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it under the guard. Not started: dependency install failed; the server itself was not observed. The code names no credential variable; the guard pins the network to what the honeypot saw and logs every call.

$vet-skills run --net declared -- uvx parsimony-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 2026-11-14 and scored it 84/100 (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

HIGH
Access to sensitive file pathsparsimony_mcp/init.py:35 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files* Before writing ``.env``, the project's ``.gitignore`` must alreadyFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathsparsimony_mcp/_env.py:17 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesThe walk that locates the ``.env`` file is bounded for security.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 pathsparsimony_mcp/__main__.py:50 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files1. ``load_env`` runs first so ``.env`` and any caller-providedFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathsparsimony_mcp/__main__.py:80 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"connector %s is unbound — set %s in env or .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 pathspyproject.toml:28 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files# python-dotenv reads .env at server startup so the same secretsFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathsparsimony_mcp/init.py:8 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files* ``.env`` — empty ``KEY=`` lines grouped by connector with the URLFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathsparsimony_mcp/init.py:7 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files(Claude Code, Cursor, Continue) using ``uv run --env-file .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 pathsparsimony_mcp/_env.py:1 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"""Bounded ``.env`` loader with explicit precedence.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 pathsAGENTS.md:45 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files- `init` refuses to write `.env` unless `.gitignore` already ignores it; writes with `O_EXCL|O_NOFOLLOW` at mode `0o600`.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 pathsparsimony_mcp/__main__.py:45 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"""Apply the .env precedence chain to ``os.environ`` before discovery.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 pathsparsimony_mcp/_env.py:11 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesshell or by an MCP host's ``mcpServers.*.env`` block at child-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 pathsparsimony_mcp/server.py:85 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesis on the path. The ``--env-file .env`` flag loads connector credentials \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 pathsparsimony_mcp/_env.py:14 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files3. **``.env`` file values** — loaded via ``python-dotenv`` withFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathsparsimony_mcp/_env.py:19 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesload ``/tmp/.env`` or ``~/.env`` if the developer happened to run fromFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathsparsimony_mcp/server.py:70 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesuv run --env-file .env python -c "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 pathsparsimony_mcp/__main__.py:56 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesReordering breaks ``.env``-driven config silently (the levelFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathsparsimony_mcp/server.py:86 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesfrom the project's ``.env`` before ``bind_env()`` snapshots ``os.environ`` \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 pathsAGENTS.md:32 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files| `init` scaffolder (`.mcp.json` + `.env` + `AGENTS.md`) | `parsimony_mcp/init.py` |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 pathsAGENTS.md:31 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files| Bounded `.env` loader, `$HOME`-containment + ownership checks | `parsimony_mcp/_env.py` |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 pathsparsimony_mcp/init.py:33 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesmalicious symlink at ``./.env`` from being silently overwritten.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 pathsparsimony_mcp/init.py:29 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files* ``.env`` is written with ``O_CREAT|O_EXCL|O_WRONLY|O_NOFOLLOW`` atFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Access to sensitive file pathstests/test_env.py:62 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files(project / ".env").write_text("FRED_API_KEY=from_dotenv\n")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedparsimony_mcp/init.py:339 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Access to sensitive file pathstests/test_init.py:30 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files(project / ".gitignore").write_text(".env\n")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 pathstests/test_init.py:88 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesenv_text = render_files(connectors)[".env"]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 pathstests/test_init.py:27 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"""A scaffold-ready project directory: exists + .gitignore ignores .env."""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 pathstests/test_env.py:43 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files(project / ".env").write_text("FRED_API_KEY=from_dotenv\n")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 pathstests/test_init.py:58 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesassert set(files) == {".mcp.json", ".env"}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 pathstests/test_env.py:30 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"""overrides > pre-existing os.environ > .env file."""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 pathstests/test_agent_contract.py:58 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesnot auto-load ``.env``. The template MUST prescribe ``--env-file``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 pathstests/test_env.py:1 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files"""Tests for parsimony_mcp._env — the bounded .env loader."""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 paths.github/ISSUE_TEMPLATE/feature_request.yml:32 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files- `.env` loaderFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Access to sensitive file pathstests/test_env.py:33 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files(project / ".env").write_text("FRED_API_KEY=from_dotenv\n")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 pathstests/test_init.py:73 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesenv_text = files[".env"]Fix: 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
≈651 tok
2 files · 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 parsimony-mcp@0.3.0 as of 3 h ago. This is the package itself, not its dependencies.

parsimony-mcp@0.3.0 safety verdict: Verified (not started) — KillerSkills