io.github.Dave-London/python
NPM · @PARETOOLS/PYTHON
Structured Python tool output (ruff, mypy, pip-audit, pip-install) as typed JSON.
Available components
Last scanned (18 hours ago)
Scores higher than 98% of npm servers
Category Testing and QA
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 Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 30 of 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency100
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to Dave-London/Pare). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 15 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability78
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1225 tokens (~111/item across 11 items; 11 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 11 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 12 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
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.
- 4 Nov 26 0
- Stability: 0.97 → pass security
- 3 Nov 26 0
- Stability: pass → 0.97 functional
- 28 Oct 26 0
- Stability: 0.97 → pass security
- 27 Oct 26 0
- Stability: pass → 0.97 functional
- 21 Oct 26 0
- Stability: 0.97 → pass security
- 20 Oct 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.
- 19 Oct 26 −1
- Stability: pass → 0.93 functional
- 17 Oct 26 +2
- Stability: 0.83 → pass security
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 4 Nov 2026 · Analysed npm/@paretools/python@0.8.0
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | Dave-London/Pare |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/Dave-London/Pare/.github/workflows/release.yml@refs/heads/main |
| Rekor log index | 949169064 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:488be9cb55b79b9416d084cfca24acd3879514a5ca583cd51a505aea050870774d2b7e7aaf5ee02bfad82e8c9ebca15a553dfbedcd4b0f41950df1504 |
Background: How many MCP packages publish verified provenance →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| Stale | 30 |
| 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 →
black Black Formatter ~106
Runs Black code formatter and returns structured results (files changed, unchanged, would reformat). Use instead of running `black` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| check | boolean | – | Check mode (report without modifying files) |
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| path | string | – | Project root path (default: cwd) |
| targets | array | – | Files or directories to format (default: ["."]) |
| Name | Type | Req | Description |
|---|---|---|---|
| filesChanged | number | yes | – |
| filesChecked | number | yes | – |
| filesUnchanged | number | yes | – |
| success | boolean | yes | – |
| wouldReformat | array | yes | – |
No examples provided.
mypy mypy Type Check ~96
Runs mypy and returns structured type-check diagnostics (file, line, severity, message, code). Use instead of running `mypy` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| path | string | – | Project root path (default: cwd) |
| targets | array | – | Files or directories to check (default: ['.']) |
| Name | Type | Req | Description |
|---|---|---|---|
| diagnostics | array | yes | – |
| errors | number | yes | – |
| success | boolean | yes | – |
| total | number | yes | – |
| warnings | number | yes | – |
No examples provided.
pip-audit pip Audit ~83
Runs pip-audit and returns a structured vulnerability report. Use instead of running `pip-audit` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| path | string | – | Project root path (default: cwd) |
| requirements | string | – | Path to requirements file |
| Name | Type | Req | Description |
|---|---|---|---|
| total | number | yes | – |
| vulnerabilities | array | yes | – |
No examples provided.
pip-install pip Install ~143
Runs pip install and returns a structured summary of installed packages. Use instead of running `pip install` in the terminal. WARNING: Installing packages may execute arbitrary setup.py code. Only install trusted packages. Use dryRun to preview what would be installed before committing.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| dryRun | boolean | – | Preview what would be installed without actually installing (--dry-run) |
| packages | array | – | Packages to install (empty for requirements.txt) |
| path | string | – | Working directory (default: cwd) |
| requirements | string | – | Path to requirements file |
| Name | Type | Req | Description |
|---|---|---|---|
| alreadySatisfied | boolean | yes | – |
| installed | array | yes | – |
| success | boolean | yes | – |
| total | number | yes | – |
No examples provided.
pip-list pip List ~70
Runs pip list and returns a structured list of installed packages. Use instead of running `pip list` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| path | string | – | Working directory (default: cwd) |
| Name | Type | Req | Description |
|---|---|---|---|
| packages | array | yes | – |
| total | number | yes | – |
No examples provided.
pip-show pip Show ~86
Runs pip show and returns structured package metadata (name, version, summary, dependencies). Use instead of running `pip show` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| package | string | yes | Package name to show |
| path | string | – | Working directory (default: cwd) |
| Name | Type | Req | Description |
|---|---|---|---|
| author | string | – | – |
| homepage | string | – | – |
| license | string | – | – |
| location | string | – | – |
| name | string | yes | – |
| requires | array | yes | – |
| summary | string | yes | – |
| version | string | yes | – |
No examples provided.
pytest ~136
Runs pytest and returns structured test results (passed, failed, errors, skipped, failures). Use instead of running `pytest` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| exitFirst | boolean | – | Stop on first failure (-x) |
| markers | string | – | Pytest marker expression (e.g. "not slow") |
| path | string | – | Project root path (default: cwd) |
| targets | array | – | Test files or directories to run (default: auto-discover) |
| verbose | boolean | – | Enable verbose output |
| Name | Type | Req | Description |
|---|---|---|---|
| duration | number | yes | – |
| errors | number | yes | – |
| failed | number | yes | – |
| failures | array | yes | – |
| passed | number | yes | – |
| skipped | number | yes | – |
| success | boolean | yes | – |
| total | number | yes | – |
No examples provided.
ruff-check ruff Lint ~106
Runs ruff check and returns structured lint diagnostics (file, line, code, message). Use instead of running `ruff check` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| fix | boolean | – | Auto-fix problems |
| path | string | – | Project root path (default: cwd) |
| targets | array | – | Files or directories to check (default: ['.']) |
| Name | Type | Req | Description |
|---|---|---|---|
| diagnostics | array | yes | – |
| fixable | number | yes | – |
| total | number | yes | – |
No examples provided.
ruff-format ruff Format ~106
Runs ruff format and returns structured results (files changed, file list). Use instead of running `ruff format` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| check | boolean | – | Check mode (report without modifying files) |
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| path | string | – | Project root path (default: cwd) |
| patterns | array | – | Files or directories to format (default: ["."]) |
| Name | Type | Req | Description |
|---|---|---|---|
| files | array | – | – |
| filesChanged | number | yes | – |
| success | boolean | yes | – |
No examples provided.
uv-install uv Install ~142
Runs uv pip install and returns a structured summary of installed packages. Use instead of running `uv pip install` in the terminal. WARNING: Installing packages may execute arbitrary setup.py code during build. Only install trusted packages. Use dryRun to preview what would be installed before committing.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| dryRun | boolean | – | Preview what would be installed without actually installing (--dry-run) |
| packages | array | – | Packages to install |
| path | string | – | Working directory (default: cwd) |
| requirements | string | – | Path to requirements file |
| Name | Type | Req | Description |
|---|---|---|---|
| duration | number | yes | – |
| installed | array | yes | – |
| success | boolean | yes | – |
| total | number | yes | – |
No examples provided.
uv-run uv Run ~93
Runs a command in a uv-managed environment and returns structured output. Use instead of running `uv run` in the terminal.
| Name | Type | Req | Description |
|---|---|---|---|
| command | array | yes | Command and arguments to run (e.g. ['python', 'script.py']) |
| compact | boolean | – | Auto-compact when structured output exceeds raw CLI tokens. Set false to always get full schema. |
| path | string | – | Working directory (default: cwd) |
| Name | Type | Req | Description |
|---|---|---|---|
| duration | number | yes | – |
| exitCode | number | yes | – |
| stderr | string | yes | – |
| stdout | string | yes | – |
| success | boolean | yes | – |
No examples provided.
How do I install the io.github.Dave-London/python MCP server?
io.github.Dave-London/python runs locally as an npm package, launched with npx -y @paretools/python. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @paretools/python
claude mcp add dave-london-python -- npx -y @paretools/python
What is the io.github.Dave-London/python MCP server?
io.github.Dave-London/python is an MCP server listed in the public MCP registry as io.github.Dave-London/python. Structured Python tool output (ruff, mypy, pip-audit, pip-install) as typed JSON. This page covers its npm package (@paretools/python).
Is the io.github.Dave-London/python MCP server safe to use?
io.github.Dave-London/python scores 95 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 4 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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 io.github.Dave-London/python MCP server expose?
io.github.Dave-London/python exposes 11 tools: pip-install, pip-list, pip-show, mypy, ruff-check, and 6 more. Their descriptions and schemas cost roughly 1,167 tokens of context every time the server is loaded.
Is the io.github.Dave-London/python MCP server still maintained?
io.github.Dave-London/python is still listed as active in the MCP registry. We last reached this channel on 4 November 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 io.github.Dave-London/python MCP server under?
io.github.Dave-London/python declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.