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rebar: Instructions file for GitHub Copilot

.github/copilot-instructions.md

rebar copilot-instructions.md is an instructions file for GitHub Copilot from navapbc/rebar. It costs 397 tokens per session, scanned A, original, Apache-2.0.

A guidance file that directs GitHub Copilot and other coding assistants to the repository's main AGENTS.md instructions. It explains the project's ticket process, code-navigation rules, file-size limits, and Gerrit-based contribution process.

In plain words
What is it for?
Use it as the entry point for repository work involving ticket claiming, parallel-agent coordination, code editing rules, and submitting changes through Gerrit.
Why use it?
It keeps different coding-assistant interfaces aligned with the same repository rules instead of using separate or outdated instructions.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is navapbc/rebar's own configuration. It tells GitHub Copilot how to work on rebar itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything rebar configures →

not rated 5repo +1 today A scan 397 tokens original Apache-2.0
View source ↗ navapbc/rebar
Reuse

Borrowing it

Nothing to install: this file belongs to navapbc/rebar. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/navapbc/rebar/main/.github/copilot-instructions.md
Clone the repo
git clone --depth 1 https://github.com/navapbc/rebar

Made for: GitHub Copilot.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for rebar copilot-instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/navapbc/rebar/copilot-instructions/github.svg)](https://agentmods.dev/instructions/navapbc/rebar/copilot-instructions)
Your own site
<a href="https://agentmods.dev/instructions/navapbc/rebar/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/navapbc/rebar/copilot-instructions/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for rebar copilot-instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/navapbc/rebar/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/navapbc/rebar/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 397 This file is loaded in full into every session.
When invoked 397 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00397 $0.00397
Opus 5.5 $0.00159 $0.00159
Sonnet 5.5 $0.00079 $0.00079
Haiku 4.5 $0.00040 $0.00040

Measured 2mo ago against content hash 11e079ce2265, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

rebar copilot-instructions.md 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 2mo 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.

.github/copilot-instructions.md · 28 lines

What it actually says

rebar — GitHub Copilot entry point

The canonical agent & contributor guidance for this repo lives in AGENTS.md at the repository root. GitHub Copilot's coding agent already reads AGENTS.md natively, exactly as Codex does (see AGENTS.md's own note on this); this file exists so that other Copilot surfaces — Copilot Chat and the Copilot CLI running in this checkout — are pointed at that same canonical source instead of drifting from it, mirroring the bridge CLAUDE.md provides for Claude Code via its @AGENTS.md import.

Read and follow AGENTS.md in full before doing any work in this repository. It covers, among other things:

  • Recording work in rebar tickets (not scratch notes), and claiming a ticket before touching code.

  • The parallel-agent ticket workflow (list/search → ready/next-batch → claim → work → transition closed).

  • The module-size policy and code-navigation tooling (Serena vs. grep) for editing rebar itself.

  • The Gerrit-based git workflow for landing changes — main is not merged via GitHub PRs; changes go through git push gerrit HEAD:refs/for/main and require LLM-Review +1 and Verified +1 before Submit.

  • Pointers into docs/ for ticket model, gate protocols, MCP tools, concurrency, and more.

  • Put anything all harnesses need in AGENTS.md, not here.

  • Keep any genuinely Copilot-specific instructions in this file, below this note.

  • Do not duplicate AGENTS.md content here beyond this summary — if the two ever diverge, AGENTS.md is authoritative.

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. 2mo ago First seen · 28 lines · 397 tokens per session scan A 11e079ce2265

Subscribe to this mod's changes

rebar copilot-instructions.md is an instructions file published in the GitHub repository navapbc/rebar (5 stars, last pushed today), licensed Apache-2.0. It adds 397 tokens to every session, about $0.0016 per session on Opus 5.5. 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.

Related

rebar copilot-instructions.md compared with instructions from other repositories

rebar copilot-instructions.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
rebar copilot-instructions.mdnavapbc/rebarInstructions file5todayApache-2.0A397GitHub Copilot
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149kyesterdayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode