pigeon (pepperonas/pigeon) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 7 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Emerging
74/100
3 months ago

pigeon

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→ pepperonas/pigeon· listed on glama

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

Code Verified⚡ Live Monitored: not connected

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Who stands behind it

pepperonas

Source: Glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configPIGEON_ALLOW_EVAL"env": { "PIGEON_DB": "/abs/path/history.jsonl", "": "1" }
configPIGEON_CHROME
configPIGEON_CONTROL_PORT8766 daemon Base control-channel port (first free from here). Proxies discover the actual port via the runtime file.
configPIGEON_DASHBOARDIt's on by default; disable with =0. Security: it binds 127.0.0.1 only,
configPIGEON_DASHBOARD_PORT8767 daemon Base web-dashboard HTTP port (first free from here).
configPIGEON_DBget_error_history({ limit?, level?, since? }) When is set. Query the on-disk history — spans restarts, beyond the 200-entry buffer.
configPIGEON_HEADED
configPIGEON_LOG_FILEstdio. All logs go to stderr (or $) — never stdout, which is
configPIGEON_RUNTIME_DIR~/.pigeon both Where the daemon writes its discovery file (runtime.json) + lock.
configPIGEON_SOURCEMAPS1 server Set to 0 to disable source-map resolution of stacks.
configPIGEON_TEST_WS_PORT
configPIGEON_WS_PORT8765 daemon Base extension WebSocket port. The daemon binds the first free port from here; the extension scans the next 16.
configPIGEON_WS_URL
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

7/7 tools missing one or more hints — get_recent_errors (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); clear_errors (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); wait_for_next_error (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +4 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool inputs are validated

5/7 tool handlers declare input schemas (71%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Tool test coverage

Only 0/7 tools referenced in tests (0%)

Write tests that reference each tool by name so every tool has at least one test.

Shell command execution

4 child_process calls — runs shell commands

Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/pepperonas/pigeon)](https://m8ven.ai/mcp/pepperonas/pigeon)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: 7de099c916cd9b6b0345bb57c970a44278a50949
code hash: 39a5aecf4a3c53232dd1e31b81e431435d5069903e198a8cfde5261c8a6136c7
verified: 6/11/2026, 12:14:41 PM
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