provider-collaboration-protocol

A protocol for having one AI coding agent review work produced by another AI provider. It defines how reviews are started, how findings are recorded, and how failed reviews lead to fixes and another review.

In plain words
What is it for?
Use it to run read-only peer reviews, limit review rounds, record findings, choose commit handling, and review code, design, or both.
Why use it?
It adds a repeatable second check for code or design and keeps the process from silently passing when review problems remain.

Cursor rule for Cursor

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/gosha70/code-copilot-team/provider-collaboration-protocol
Clone the repo
git clone --depth 1 https://github.com/gosha70/code-copilot-team

Made for: Cursor.

Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 948 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00024 $0.00948
Opus 5 $0.00012 $0.00474
Sonnet 5 $0.00005 $0.00190
Haiku 4.5 $0.00002 $0.00095

Measured 2d ago against content hash d21306c74d72, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

provider-collaboration-protocol scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

adapters/cursor/.cursor/rules/provider-collaboration-protocol.mdc · 102 lines

How it starts

The opening of the file, as written. The whole thing — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Provider Collaboration Protocol

Rules governing cross-provider peer review in dual-copilot sessions.

Session Flags

Peer review is enabled per-session via launcher flags:

  • --peer-review [provider-name] — enable peer review; optional provider override.
  • --peer-review-off — disable peer review.
  • --peer-review-scope code|design|both — review scope (default: both).

Environment variables set by launcher:

  • CCT_PEER_REVIEW_ENABLEDtrue or false.
  • CCT_PEER_PROVIDER — explicit provider name or empty (use profile default).
  • CCT_REVIEW_COMMITS — commit strategy: single, per-round, or squash (default: squash).
  • CCT_REVIEW_MAX_ROUNDS — max review rounds before breaker (default: 5).

Review Flow

Peer review is agent-driven via /review-submit, not triggered by stop hooks.

  1. Build agent completes work, commits, and runs /review-submit.
  2. /review-submit invokes review-round-runner.sh which spawns a reviewer LLM in a read-only sandbox.
  3. Runner writes structured findings to .cct/review/findings-round-N.json and returns a verdict.
  4. On FAIL: agent addresses findings, commits fixes, and runs /review-submit again.
  5. On PASS: runner writes loop-summary.json and collaboration artifact. Agent proceeds to /phase-complete.
  6. On BREAKER: runner writes breaker-tripped.json. Agent stops. Human runs /review-decide.

The stop hook (peer-review-on-stop.sh) validates that loop-summary.json exists with PASS or approved bypass — it does not initiate review. Plan-phase sessions are exempt.

See review-loop.md for the full loop protocol, finding schema, and circuit breaker details.

Artifact Schema

Collaboration artifacts live under specs/<feature-id>/collaboration/.

Artifact types:

  • plan-consult.md — peer review of the plan phase.
  • build-review.md — peer review of the build phase.

Frontmatter (aligned with SDD conventions)

---
feature_id: [feature-id]
date: [YYYY-MM-DD]
status: [draft | final]
phase: [plan | build]
mode: [consult | review]
subject_provider: [provider that did the work]
peer_provider: [provider that reviewed]
peer_profile: [profile name from providers.toml]
runner_fingerprint: [command template hash + provider version]
verdict: [PASS | FAIL | INCONCLUSIVE]
blocking_findings_open: [integer]
target_ref: [git ref]
---

Read the full file on GitHub · 102 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 102 lines · 24 tokens per session scan A d21306c74d72

Subscribe to this mod's changes

provider-collaboration-protocol is a cursor rule published in the GitHub repository gosha70/code-copilot-team (6 stars, last pushed 2d ago), licensed MIT. It adds 24 tokens to every session and 948 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.