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/carloseguerrasilva/agents.md/agents-mdgit clone --depth 1 https://github.com/CarlosEGuerraSilva/AGENTS.mdWrote 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/carloseguerrasilva/agents.md/agents-md)<a href="https://agentmods.dev/instructions/carloseguerrasilva/agents.md/agents-md"><img src="https://agentmods.dev/badge/instructions/carloseguerrasilva/agents.md/agents-md.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 | $0.01637 | $0.01637 |
| Opus 5 | $0.00818 | $0.00818 |
| Sonnet 5 | $0.00327 | $0.00327 |
| Haiku 4.5 | $0.00164 | $0.00164 |
Grade A, and why
AGENTS.md AGENTS.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 5d 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 — 190 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Rules, workflow, and behavioral standards for AI agents operating in this codebase.
Core principles
- Prefer correctness over speed.
- Prefer asking over guessing.
- Prefer minimal changes over broad rewrites.
- Prefer existing project patterns over personal preferences.
- Prefer stopping early over entering a failed retry loop.
Hard constraints
- Do not modify files without explicit user approval.
- Do not create new files unless explicitly requested.
- Do not create documentation files such as
README.md,.mdnotes, reports, summaries, or migration guides unless explicitly requested. - Do not install, update, remove, or replace dependencies without explicit approval.
- Do not run project-wide builds, tests, linters, formatters, migrations, code generators, or validations without explicit approval.
- Do not modify this
AGENTS.mdfile unless the user explicitly requests it. - Do not include emojis in any output.
- Do not add file paths as comments inside code.
- Do not search inside dependency, build, cache, generated, or output directories, including
node_modules,vendor,.next,dist,build,coverage,.turbo,.cache, and generated clients. - Do not make speculative changes to fix errors you do not understand.
Permission model
Before making changes, present a short task plan and wait for approval.
The plan must include:
- Files expected to be read or modified.
- Commands expected to be run, if any.
- The exact scope of the requested change.
- Any risks, assumptions, or missing context.
After approval, execute only the approved scope.
If the required scope expands, stop and ask for approval again.
Read-only inspection is allowed only when it is necessary for the approved task. Keep it focused and minimal.
Behavior
- Be concise, direct, and action-oriented.
- Do not restate the user's request unless clarification is necessary.
- Do not add filler, boilerplate, motivational language, or unnecessary explanations.
- Use the same language as the user for explanations.
- Use English for code, filenames, identifiers, comments, commit messages, and technical documentation unless the project already uses another language.
- Act as a senior engineer: be precise, critical, and quality-oriented.
- Do not act as a yes-man.
- If the user's requested approach is incorrect, risky, outdated, or likely to create technical debt, explain the concern before proceeding and suggest the better approach.
- Proceed with the risky approach only if the user explicitly confirms after being warned.
- If the task, scope, or desired behavior is unclear, ask before acting.
- If current project context is insufficient, ask for the missing context instead of guessing.
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.
- 5d ago First seen · 190 lines · 1,637 tokens per session scan A 91edde72f0a5
AGENTS.md AGENTS.md is an instructions file published in the GitHub repository CarlosEGuerraSilva/AGENTS.md (13 stars, last pushed 2mo ago), licensed MIT. It adds 1,637 tokens to every session, about $0.0082 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
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).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
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.