[External Plugin]: beacon

[jqdsouza]

Plugin name

beacon

Short description

Cross-harness memory from Beacon traces: recall reviewed project lessons, distill agent sessions into approved memory, and promote memory to Agent Skills.

GitHub repository

asymptote-labs/agent-beacon

Plugin path inside the repository

agent-skills

Ref to review

No response

Commit SHA to review

4324b0b63630e5a297ac53870c85359daf705624

Version

0.1.0

License identifier

MIT

Author name

Asymptote Labs

Author URL

https://beacon.sh

Homepage URL

https://docs.beacon.sh/concepts/beacon-skills

Keywords

memory
traces
observability
agent-skills
beacon
mcp

Additional notes for reviewers

Beacon is an open-source, local-first telemetry agent that records what coding agents do across Copilot CLI, VS Code, Claude Code, Cursor, Codex, and 20+ other harnesses. This plugin turns that history into reviewed project memory:

• beacon-memory-recall: before a task, retrieves lessons the team already approved for the current repository.
• beacon-memory-distill: reviews selected sessions, drafts a lesson grounded in the source trace, and saves it only after the user confirms.
• beacon-memory-promote: installs an approved lesson as a project Agent Skill.

The plugin root (agent-skills/) carries an Agent Plugins 1.0 plugin.json, skills/, and an mcp.json that registers the local beacon mcp serve server (stdio, read-only memory tools). The skills and MCP server need the open-source Beacon CLI on PATH; without it the skills tell the user how to install it and continue without memory. Recall and promote make no network calls; the one optional networked step (trace evaluation in distill) runs only after a dry run and explicit user consent.

The entry passes validateExternalPlugin under the publicSubmission policy with no errors or warnings. Copilot CLI can already install it directly: copilot plugin marketplace add asymptote-labs/agent-beacon, then copilot plugin install beacon@beacon

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]

🟡 Contributor Reputation Check: MEDIUM risk

Check	Risk
Profile	MEDIUM
Credential audit	NONE

Maintainers: please review this contributor before merging.
See the workflow run for full details.
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[github-actions]

✅ External plugin intake passed

This submission passed automated intake validation and quality checks and is ready for maintainer review.

View workflow run · Download full quality gate logs

• Plugin: beacon

• Repository: https://github.com/asymptote-labs/agent-beacon

• SHA: 4324b0b63630e5a297ac53870c85359daf705624

Reviewer signals

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

Signal	Result
Repository age	136 day(s)
Repository activity	no configured signal
Repository counts	1523 stars · 1 watchers · 124 forks · 3 open issues/PRs
Homepage heuristics	⚠️ pricing, checkout

Quality gate summary

Legend: ✅ pass · ⚠️ warning · 🛑 fail

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

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

spec compliance output (✅ pass)

Agent Plugins v1.0.0 manifest checks passed for plugin.json.

vally lint output (✅ pass)

✅ beacon-memory-distill (2/2 checks passed)
    ✓ [spec-compliance] All 1 skill(s) are spec-compliant.
        ✓ spec-compliance: All spec checks passed.
    ✓ [valid-refs] All file references across 1 skill(s) are valid.
        ✓ valid-refs: All file references resolve to existing files within the skill directory.
✅ beacon-memory-promote (2/2 checks passed)
    ✓ [spec-compliance] All 1 skill(s) are spec-compliant.
        ✓ spec-compliance: All spec checks passed.
    ✓ [valid-refs] All file references across 1 skill(s) are valid.
        ✓ valid-refs: All file references resolve to existing files within the skill directory.
✅ beacon-memory-recall (2/2 checks passed)
    ✓ [spec-compliance] All 1 skill(s) are spec-compliant.
        ✓ spec-compliance: All spec checks passed.
    ✓ [valid-refs] All file references across 1 skill(s) are valid.
        ✓ valid-refs: All file references resolve to existing files within the skill directory.

3 skill(s) linted, 3 passed

install smoke test output (✅ pass)

Install smoke test succeeded. Verified /tmp/external-plugin-quality-Gu9elE/copilot-home/.copilot/installed-plugins/external-plugin-intake/beacon/plugin.json.

Version match output

- 4324b0b63630e5a297ac53870c85359daf705624: matched version "0.1.0" at "agent-skills/plugin.json".

Ref/SHA consistency output

Ref/SHA consistency gate skipped because one of source.ref or source.sha was not provided.

Canvas structure output

Canvas structure gate skipped because plugin is not tagged with "canvas".

Canonical external.json payload

{
  "name": "beacon",
  "description": "Cross-harness memory from Beacon traces: recall reviewed project lessons, distill agent sessions into approved memory, and promote memory to Agent Skills.",
  "version": "0.1.0",
  "author": {
    "name": "Asymptote Labs",
    "url": "https://beacon.sh"
  },
  "repository": "https://github.com/asymptote-labs/agent-beacon",
  "homepage": "https://docs.beacon.sh/concepts/beacon-skills",
  "license": "MIT",
  "keywords": [
    "memory",
    "traces",
    "observability",
    "agent-skills",
    "beacon",
    "mcp"
  ],
  "source": {
    "source": "github",
    "repo": "asymptote-labs/agent-beacon",
    "path": "agent-skills",
    "sha": "4324b0b63630e5a297ac53870c85359daf705624"
  }
}