Borrowing it
Nothing to install: this file belongs to cboone/agent-harness-plugins. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/cboone/agent-harness-plugins/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/cboone/agent-harness-pluginsWrote 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.
[](https://agentmods.dev/instructions/cboone/agent-harness-plugins/copilot-instructions)<a href="https://agentmods.dev/instructions/cboone/agent-harness-plugins/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/cboone/agent-harness-plugins/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.
<a href="https://agentmods.dev/instructions/cboone/agent-harness-plugins/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/cboone/agent-harness-plugins/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.07284 | $0.07284 |
| Opus 5.5 | $0.02914 | $0.02914 |
| Sonnet 5.5 | $0.01457 | $0.01457 |
| Haiku 4.5 | $0.00728 | $0.00728 |
Grade C, and why
agent-harness-plugins copilot-instructions.md scanned grade C with 2 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 4d 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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
- **CI and local templates use `gh release download` for scrut installation**: Scrut is installed via `gh release download` from `facebookincubator/scrut` with a pinned version tag. The upstream install script is not use Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- **CI and local templates use `gh release download` for scrut installation**: Scrut is installed via `gh release download` from `facebookincubator/scrut` with a pinned version tag. The upstream install script is not use How it starts
The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.
GitHub Copilot Instructions
For full project conventions, see AGENTS.md in the repository root.
Scoped instructions
- Dependabot review instructions cover the Dependabot plugin, reference, and fixture paths listed in that file's
applyTofield. - Branch review evidence instructions cover
docs/reviews/**/*.md. - Plugin permission instructions cover
plugins/**/README.md. - Review checklist instructions cover each style guide's
references/review-checklist.md,plugins/set-up-review-config/**, andbin/build-review-checklists. - Shell script review instructions cover
**/scripts/**,**/bin/**, and**/tests/fixtures/**. - Worktree naming review instructions cover
plugins/workmux/**and its correspondingdist/codex/plugins/mirrors. - Copilot rounds report review instructions cover
bin/copilot-rounds-reportand its scrut tests and fixture data. - Review anti-patterns review instructions cover
plugins/review-anti-patterns/**and itsdist/codex/plugins/mirror. - Trim comments review instructions cover
plugins/trim-comments/**and itsdist/codex/plugins/mirror.
PR review
- Version bumps are selective: Only plugins with actual code changes get version bumps. Do not flag missing version bumps on unchanged plugins.
excludeAgentfollows GitHub's documented format and values: GitHub documents a scalar value of"code-review"to exclude code review or"cloud-agent"to exclude the cloud agent. Do not replace"cloud-agent"with"coding-agent"or infer a list form; GitHub's repository-instructions documentation shows a scalar field and these two values.- PR descriptions may contain stale commit references: PR descriptions are often auto-generated from commit messages and may reference superseded commits. Do not flag discrepancies between PR description bullet points and the actual diff.
- Done plans are historical records: Files in
docs/plans/done/are completed plan documents preserved for reference. They may not match the final implementation. Do not flag discrepancies between done plan content and the actual codebase. - Scoped instruction aliases are committed symlinks: Each directory-scoped
AGENTS.mdhas a siblingCLAUDE.md -> AGENTS.mdsymlink. Confirm these entries withgit ls-treeortest -L; file listings that omit symlinks do not show that an alias is absent. monitor-pr:monitordeliberately does not gate onBLOCKEDorreviewDecision: The skill treats mergeability as clean when there are no conflicts and the branch is not behind. RequiringmergeStateStatusto beCLEAN, or waiting for an approving review, would never terminate on a repository whose branch protection requires a reviewer the skill cannot supply.BLOCKEDis reported prominently instead, including in the terminal report. Do not flag this as too permissive.
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.
- 4d ago Changed · +1 lines · +33 tokens per session 6fc284dbf2a3
- 5d ago Changed · -1 lines · -262 tokens per session 3b82ab93e700
- 9d ago Changed · +1 lines · +34 tokens per session 7817f47b4917
- 10d ago Changed 888151894ea0
- 24d ago Changed · +1 lines · +182 tokens per session 078f0d07e9c5
- 25d ago Changed · +1 lines · +43 tokens per session d15f62cc4532
- 27d ago Changed · +1 lines · +109 tokens per session 217ac941874f
- 28d ago Changed · -13 tokens per session 8d8b2bb8110d
- 1mo ago Changed · +3 lines · +207 tokens per session ac570504871f
- 1mo ago First seen · 106 lines · 6,951 tokens per session scan C 91eb986de8e6
agent-harness-plugins copilot-instructions.md is an instructions file published in the GitHub repository cboone/agent-harness-plugins (2 stars, last pushed today), licensed MIT. It adds 7,284 tokens to every session, about $0.0291 per session on Opus 5.5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).