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/trsdn/github-copilot-cli/markdowngit clone --depth 1 https://github.com/trsdn/github-copilot-cliWhat 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 | $0.00264 | $0.00264 |
| Opus 5 | $0.00132 | $0.00132 |
| Sonnet 5 | $0.00053 | $0.00053 |
| Haiku 4.5 | $0.00026 | $0.00026 |
Grade A, and why
github-copilot-cli markdown.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 yesterday.
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
When writing or editing Markdown files in this repository:
- Use ATX-style headings (
#,##, etc.) — not underline style - Use fenced code blocks with language identifiers (
yaml,bash, ```markdown) - Keep lines under 120 characters where practical
- Use relative links for internal documentation references
- YAML frontmatter: quote strings that contain special characters
- For SKILL.md files: ensure
nameanddescriptionare present in frontmatter - For SKILL.md files: optional fields include
license,allowed-tools,user-invocable, anddisable-model-invocation - For agent files: ensure
descriptionis present,name,target, andtoolsrecommended - For agent files: optional fields include
model,mcp-servers,user-invocable, anddisable-model-invocation - For instruction files: ensure
applyToglob is present in frontmatter - For hook files: use JSON under
.github/hooks/*.jsonwithversion: 1 - For MCP config: use JSON with an
mcpServersobject in.github/mcp.jsonor.mcp.json
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.
- yesterday First seen · 21 lines · 264 tokens per session scan A 36ec1e85b903
github-copilot-cli markdown.instructions.md is an instructions file published in the GitHub repository trsdn/github-copilot-cli (1 stars, last pushed 2mo ago), licensed MIT. It adds 264 tokens to every session, about $0.0013 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.
Other instructions, from other repositories
skill-recorder copilot-instructions.md
Instructions for microsoft/skill-recorder, covering repository instructions for coding agents and pull requests target the active release branch, not main.
copilotd copilot-instructions.md
Instructions for DamianEdwards/copilotd, covering copilot instructions for copilotd, build & run, build, run from source (auto-builds and passes all args through) and architecture.
ai-ready AGENTS.md
Instructions for johnpapa/ai-ready, covering ai-ready repo — agent guide, repository structure, tech stack, build & run and testing.
ai-ready copilot-instructions.md
Instructions for johnpapa/ai-ready, covering copilot instructions — ai-ready, project type, writing conventions, markdown and yaml (skill frontmatter, workflows, issue templates).
DPlex copilot-instructions.md
Instructions for Ron537/DPlex, covering dplex — copilot instructions, build & run, architecture, process boundaries and provider system (ai tool abstraction).
spec-kit-copilot AGENTS.md
Instructions for github/spec-kit-copilot, covering what this repository is, core skills plugin, core decisions (do not silently undo) and when revving the core skills plugin.