Borrowing it
Nothing to install: this file belongs to techwolf-ai/ai-first-toolkit. 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/techwolf-ai/ai-first-toolkit/main/AGENTS.mdgit clone --depth 1 https://github.com/techwolf-ai/ai-first-toolkitWrote 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/techwolf-ai/ai-first-toolkit/agents-md)<a href="https://agentmods.dev/instructions/techwolf-ai/ai-first-toolkit/agents-md"><img src="https://agentmods.dev/badge/instructions/techwolf-ai/ai-first-toolkit/agents-md/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/techwolf-ai/ai-first-toolkit/agents-md"><img src="https://agentmods.dev/badge/instructions/techwolf-ai/ai-first-toolkit/agents-md.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 | $0.00851 | $0.00851 |
| Opus 5.5 | $0.00340 | $0.00340 |
| Sonnet 5.5 | $0.00170 | $0.00170 |
| Haiku 4.5 | $0.00085 | $0.00085 |
Grade B, and why
ai-first-toolkit AGENTS.md scanned grade B with 1 finding 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 25d 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
- Codex and Antigravity installs are both managed via `./install.sh` (Codex is the default; `--ide antigravity` installs one self-contained plugin dir per plugin into `~/.gemini/config/plugins/`, matching where Antigravi How it starts
The opening of the file, as written. The whole thing — 32 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TechWolf AI-First Toolkit
This repository publishes TechWolf AI-first plugins and skills for Claude Code, Codex, and Google Antigravity.
Repository Purpose
plugins/<plugin>/is the source of truth for each plugin.- The
skills/directory in each plugin holds theSKILL.mdpackages, shared verbatim across all three targets (agentskills.io spec). There is no per-target skill rewrite. - Per-target metadata is the only thing that differs:
- Claude Code:
.claude-plugin/marketplace.json(root) andplugins/<plugin>/.claude-plugin/plugin.json. - Antigravity / vendor-neutral:
.agents/plugins/marketplace.json(root) andplugins/<plugin>/plugin.json(Antigravity plugin marker).
- Claude Code:
- Codex and Antigravity installs are both managed via
./install.sh(Codex is the default;--ide antigravityinstalls one self-contained plugin dir per plugin into~/.gemini/config/plugins/, matching where Antigravity keeps its own plugins).
Working Conventions
- Preserve the mapping between a plugin and its installed skills across all targets.
- When adding or renaming a plugin, update both marketplace manifests (
.claude-plugin/marketplace.jsonand.agents/plugins/marketplace.json) and add the per-pluginplugin.jsonmarker, keeping name/version/description in sync with.claude-plugin/plugin.json. - When changing a plugin, update Claude-, Codex-, and Antigravity-facing docs if behavior changes.
- If install behavior changes, update
README.md, plugin READMEs, andCHANGELOG.md. - Prefer adding plugin-specific agent guidance under
plugins/<plugin>/codex/AGENTS.md(the installer copies it into the install state dir for both Codex and Antigravity targets). - Run
python3 scripts/preflight.pybefore any release, manifest edit, or plugin/skill addition, and never push past a failure. It is the executable form of the invariants above: both markers present and name-matched, the two markers agreeing on name and version, both marketplace manifests listing the same plugin set, the README badge matching the CHANGELOG top entry, the README "N plugins, M skills" line matching the tree, and every SKILL.md carrying a name and description in frontmatter that YAML can parse. Prose invariants drift; this script is the one that gets checked.
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.
- 25d ago Changed · +17 tokens per session 1d2eb104dda8
- 1mo ago Changed · +1 lines · +185 tokens per session c9a39fc11b92
- 1mo ago First seen · 31 lines · 649 tokens per session scan B 460a290369fa
ai-first-toolkit AGENTS.md is an instructions file published in the GitHub repository techwolf-ai/ai-first-toolkit (134 stars, last pushed 18d ago), licensed MIT. It adds 851 tokens to every session, about $0.0034 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). 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).
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.
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).
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.