Context Guardian
PYPI · CONTEXT-GUARDIAN
Compacting proxy for OpenAI-compatible backends, with MCP tools to search the archived history.
Available components
Last scanned (4 minutes ago)
Scores higher than 67% of PyPI servers
Category Memory and Knowledge
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 Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- Runs setuptools.build_meta at install time, a recognised build step with no custom scripting around it. View diagnostics → Pass
- 0 of 19 dependencies flagged as unhealthy. View diagnostics → Pass
Provenance & Transparency48
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 2 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability64
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 163 tokens (~54/item across 3 items; 3 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage80
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 40% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
Unverified: 1 category
A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.
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.
- 15 Oct 26 66
First indexed and scored.
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 17 Oct 2026 · Analysed pypi/context-guardian@0.10.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | pypi |
| Reason | No attestation published |
Background: How many MCP packages publish verified provenance →
Install scripts 1 script
| Hook | Tier | Command |
|---|---|---|
| build_backend | allowlisted | setuptools.build_meta |
Background: Why install scripts are a supply-chain risk →
Dependencies 19 packages
| Packages resolved | 19 |
|---|---|
| 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 →
guardian_status Proxy status ~44
Context Guardian's live status from the running proxy: window and budget, compactions, tokens saved, rejected summaries, calibration. Reads GUARDIAN_HOST:GUARDIAN_PORT.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
read_span Read one archived span ~54
The summary and original messages of one span, by run id and index (as search_spans prints them). Long spans are cut at 20000 characters.
| Name | Type | Req | Description |
|---|---|---|---|
| index | integer | yes | – |
| run | string | yes | – |
No output schema declared.
No examples provided.
search_spans Search archived spans ~65
Case-insensitive search of the conversation text compaction archived. One line per hit: span file, message index and role, snippet.
| Name | Type | Req | Description |
|---|---|---|---|
| max | integer | – | – |
| run | string | – | only this proxy run id |
| term | string | yes | text to find |
No output schema declared.
No examples provided.
How do I install the Context Guardian MCP server?
Context Guardian runs locally as a PyPI package, launched with uvx context-guardian. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
pypi · context-guardian
claude mcp add luminarisoftwares-context-guardian -- uvx context-guardian
What is the Context Guardian MCP server?
Context Guardian is an MCP server listed in the public MCP registry as io.github.LuminariSoftwares/context-guardian. Compacting proxy for OpenAI-compatible backends, with MCP tools to search the archived history. This page covers its PyPI package (context-guardian).
Is the Context Guardian MCP server safe to use?
Context Guardian scores 66 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 17 October 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 Context Guardian MCP server expose?
Context Guardian exposes 3 tools: guardian_status, search_spans, read_span. Their descriptions and schemas cost roughly 163 tokens of context every time the server is loaded.
Is the Context Guardian MCP server still maintained?
Context Guardian is still listed as active in the MCP registry. We last reached this channel on 17 October 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 Context Guardian MCP server under?
Context Guardian declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.