[External Plugin]: cache-stats

[arafattehsin]

Plugin name

cache-stats

Short description

Shows live prompt-cache reuse, expiry, token composition, and AIU cost for the current GitHub Copilot session without making model calls.

GitHub repository

arafattehsin/cache-stats-extension

Plugin path inside the repository

No response

Ref to review

v1.0.0

Commit SHA to review

12a3e19bff680c1dceefb584d0728c2c030af7b6

Version

1.0.0

License identifier

MIT

Author name

Arafat Tehsin

Author URL

https://github.com/arafattehsin

Homepage URL

https://github.com/arafattehsin/cache-stats-extension

Keywords

aiu
cache
canvas
copilot
cost-visibility
prompt-cache
token-usage

Additional notes for reviewers

Cache Stats is local-first. It reads the Copilot session store in read-only mode, serves its UI only on an ephemeral 127.0.0.1 port, makes no model calls, loads no remote UI assets, and sends no telemetry. The catalog preview is illustrative and anonymized. Package checks and a GitHub Actions workflow are included in the tagged release.

Submission checklist

• The plugin lives in a public GitHub repository.
• The ref and/or sha I provided is immutable (release tag and/or full 40-character commit SHA), not a branch.
• This submission follows this repository's contribution, security, and responsible AI policies.
• This plugin is not already listed in the Awesome Copilot marketplace.

[github-actions]

⚠️ External plugin intake passed with spec warnings

This submission passed blocking quality checks and is ready for maintainer review, but it has non-blocking Agent Plugins spec compliance warnings.

• Plugin: cache-stats
• Repository: https://github.com/arafattehsin/cache-stats-extension
• Ref: v1.0.0
• SHA: 12a3e19bff680c1dceefb584d0728c2c030af7b6

Reviewer signals

These are non-blocking heuristics for maintainer review; they are not evidence of misconduct or low quality.

Signal	Result
Repository age	0 day(s)
Repository activity	repository is 0 day(s) old; 0 stars; 0 watchers; 0 forks
Repository counts	0 stars · 0 watchers · 0 forks · 0 open issues/PRs
Homepage heuristics	⚠️ pricing

Quality gate summary

Legend: ✅ pass · ⚠️ warning · 🛑 fail

Gate	Status
spec compliance (non-blocking)	⚠️ warning
vally lint	✅ pass
install smoke test	✅ pass
version match	✅ pass
ref/sha consistency	✅ pass
canvas structure	✅ pass

• spec compliance: warning
• vally lint: pass
• install smoke test: pass
• version match: pass
• ref/sha consistency: pass
• canvas structure: pass
• overall: pass

spec compliance output (⚠️ warning)

Agent Plugins v1.0.0 manifest warnings:
- $schema should be "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json"
- field "extensions" must be an object when provided
- top-level field "logo" is not part of Agent Plugins v1.0.0
- schema validation: manifest must have required property '$schema'
- schema validation: manifest must NOT have additional properties
- schema validation: /extensions must be object

vally lint output (✅ pass)

0 skill(s) linted

install smoke test output (✅ pass)

Install smoke test succeeded. Verified /tmp/external-plugin-quality-Yk8kXQ/copilot-home/.copilot/installed-plugins/external-plugin-intake/cache-stats/plugin.json.

Version match output

- v1.0.0: matched version "1.0.0" at "plugin.json".
- 12a3e19bff680c1dceefb584d0728c2c030af7b6: matched version "1.0.0" at "plugin.json".

Ref/SHA consistency output

source.ref "v1.0.0" resolves to the same commit as source.sha "12a3e19bff680c1dceefb584d0728c2c030af7b6".

Canvas structure output

- v1.0.0: found "extensions" with entry point "extensions/cache-stats/extension.mjs".
- 12a3e19bff680c1dceefb584d0728c2c030af7b6: found "extensions" with entry point "extensions/cache-stats/extension.mjs".

Canonical external.json payload

{
  "name": "cache-stats",
  "description": "Shows live prompt-cache reuse, expiry, token composition, and AIU cost for the current GitHub Copilot session without making model calls.",
  "version": "1.0.0",
  "author": {
    "name": "Arafat Tehsin",
    "url": "https://github.com/arafattehsin"
  },
  "repository": "https://github.com/arafattehsin/cache-stats-extension",
  "homepage": "https://github.com/arafattehsin/cache-stats-extension",
  "license": "MIT",
  "keywords": [
    "aiu",
    "cache",
    "canvas",
    "copilot",
    "cost-visibility",
    "prompt-cache",
    "token-usage"
  ],
  "source": {
    "source": "github",
    "repo": "arafattehsin/cache-stats-extension",
    "ref": "v1.0.0",
    "sha": "12a3e19bff680c1dceefb584d0728c2c030af7b6"
  }
}

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