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.
npx agentmods add instructions/heurema/signum/copilot-instructionsgit clone --depth 1 https://github.com/heurema/signumWrote 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/heurema/signum/copilot-instructions)<a href="https://agentmods.dev/instructions/heurema/signum/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/heurema/signum/copilot-instructions.svg" alt="Measured on agentmods" 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 | $0.00279 | $0.00279 |
| Opus 5 | $0.00139 | $0.00139 |
| Sonnet 5 | $0.00056 | $0.00056 |
| Haiku 4.5 | $0.00028 | $0.00028 |
Grade A, and why
signum 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 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.
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.
What it actually says
Signum Copilot Review Instructions
Review code only after the PR intake gate is satisfied (intake/pass or maintainer override). If intake is not satisfied, focus on the missing intent/risk signal instead of detailed code style.
Priorities, in order:
- Correctness and regressions.
- Security and trust boundaries.
- Maintainability and minimal scope.
- Minimal dependencies.
Flag risky changes in:
.github/workflows/**and custom GitHub Actions.- Dependencies, lockfiles, install scripts, Docker files, and release wiring.
- Auth, security, crypto, subprocess/shell/eval, and file-system execution paths.
- Public APIs, schemas, command behavior, and runtime behavior.
Do not recommend new dependencies unless the benefit is explicit and smaller stdlib/built-in options are insufficient.
Do not treat stylistic issues as blockers unless they affect correctness, security, maintainability, or contributor usability.
Keep public review comments concise, polite, and actionable. Do not publish contributor trust scores.
Repo map:
commands/signum.mdis the canonical Signum pipeline surface.commands/init.mdis the canonical init/bootstrap surface.agents/contains LLM prompt surfaces.lib/contains deterministic behavior.lib/schemas/is compatibility-sensitive.tests/contains verification.
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 First seen · 30 lines · 279 tokens per session scan A 4ae4a7427c5c
signum copilot-instructions.md is an instructions file published in the GitHub repository heurema/signum (18 stars, last pushed 1mo ago), licensed MIT. It adds 279 tokens to every session, about $0.0014 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 2026-08-30.
Other instructions, from other repositories
river-review GEMINI.md
Gemini CLI instructions for s977043/river-review, covering gemini instructions (river-review), 必須チェック, gemini-specific tips, prompt assembly and development tips.
living-manual CLAUDE.md
Instructions for dougstanford/living-manual, covering living-manual, start of every session, how work lands — non-negotiable, user's manual (living-manual) and releasing.
ship-it open-pr.instructions.md
Instructions for khrichtchatyi/ship-it: When the user asks to open, create, or submit a pull request, follow the skill in skills/open-pr/SKILL.md in full: verify gh is authenticated, resolve the target repository and default branch, push the current branch, open one pull request with a title and body derived from the…
agent-skills CLAUDE.md
Instructions for mindbox-cloud/agent-skills, covering agent-skills — developer guide for claude code, repository purpose, repository structure, how to add a new plugin and step 1 — create the directory structure.
my-claude-skills CLAUDE.md
Instructions for brody-0125/my-claude-skills, covering claude code skills repository, validation commands, sub-kopring-engineer: kotlin/java 코드 컨벤션 검증, numerical: 수치 연산 코드 검증 and sub-test-engineer: 문서 일관성 검증.
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).