Borrowing it
Nothing to install: this file belongs to samilozturk/agentlint. 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/samilozturk/agentlint/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/samilozturk/agentlintWrote 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/samilozturk/agentlint/copilot-instructions)<a href="https://agentmods.dev/instructions/samilozturk/agentlint/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/samilozturk/agentlint/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/samilozturk/agentlint/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/samilozturk/agentlint/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 | $0.00544 | $0.00544 |
| Opus 5.5 | $0.00218 | $0.00218 |
| Sonnet 5.5 | $0.00109 | $0.00109 |
| Haiku 4.5 | $0.00054 | $0.00054 |
Grade A, and why
agentlint 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Lint Context Maintenance
Scope
- Entire workspace. Apply these instructions when the request mentions AGENTS.md, CLAUDE.md, rules, skills, workflows, or plans, or when structure, config, dependency, or CI changes are involved.
Activation
- Always active for this workspace or instruction file when the host client loads it.
Do
- Treat plain-English requests about stale, missing, inconsistent, or low-quality AGENTS.md, CLAUDE.md, rules, skills, workflows, or plans as Agent Lint work even if the user does not name Agent Lint explicitly.
- Treat structural change signals such as new modules, new directories, dependency changes, CI/config updates, environment/security changes, or repository reorganization as triggers to check context artifacts.
- For full workspace review or fix requests, start with
agentlint_plan_workspace_autofix. - For targeted structural changes, call
agentlint_quick_checkwith changed paths and/or a short change description. - Before creating or updating any context artifact, call
agentlint_get_guidelinesfor that artifact type. - When ongoing upkeep is requested, use
agentlint_emit_maintenance_snippetwhere supported or append equivalent maintenance instructions to the main project context file. - Apply recommended context artifact changes directly once Agent Lint has identified what to update, unless the user explicitly asks for a different maintenance outcome.
- Tell the user when an update was triggered or shaped by Agent Lint maintenance guidance.
- Keep context artifact files concise and reference docs instead of duplicating them.
Don't
- Do not edit context artifacts from repo guesses alone; scan the codebase first.
- Do not duplicate README or package README prose inside AGENTS, rules, skills, workflows, or plans.
- Do not leave placeholder sections, TODO text, or stale paths in maintained artifacts.
- Do not expand this maintenance policy to unrelated code or docs outside context artifacts unless the user explicitly asks.
- Do not wait for confirmation after Agent Lint has identified safe context-file fixes unless the user asked for a different outcome or the host approval model requires a gate.
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.
- 1mo ago First seen · 42 lines · 544 tokens per session scan A 5c7195bf42f5
agentlint copilot-instructions.md is an instructions file published in the GitHub repository samilozturk/agentlint (32 stars, last pushed 6mo ago), licensed MIT. It adds 544 tokens to every session, about $0.0022 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 2026-08-30.
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Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.