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/iicmaster/antigravity-plugins/agents-mdgit clone --depth 1 https://github.com/iicmaster/antigravity-pluginsWhat 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 | $0.00323 | $0.00323 |
| Opus 5 | $0.00161 | $0.00161 |
| Sonnet 5 | $0.00065 | $0.00065 |
| Haiku 4.5 | $0.00032 | $0.00032 |
Grade A, and why
antigravity-plugins 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 2d 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
Project Instructions
Scope
- This file governs the repository from this directory downward.
Commands
npm test- Run the Node test suite.npm run validate- Alias fornpm test.node plugins/agy/scripts/agy-companion.mjs setup- Check local AGY runtime support.
Architecture
plugins/agy/scripts/lib/agy-runtime.mjsowns AGY process execution, safe argv construction, state, worker launch, and cancellation helpers.plugins/agy/commands/andplugins/agy/skills/agy/are host adapters; keep them thin and do not duplicate runtime behavior there.- Prompt text is piped through stdin without passing
--print; AGY 1.1.1 enters implicit non-interactive mode for non-TTY stdin.
Workflow
- Stage only intended source/docs files. Do not commit local workflow or runtime folders such as
.agent/,.claude/,.agents/skills/,_bmad/,.omx/,plugin-data/, or.agy-state/. - Keep Claude and Codex behavior shared through the companion/runtime unless host contracts truly require separate implementation.
- Treat command construction, permission flags, and MCP argument validation as security-sensitive.
Verification
- Run
git diff --checkbefore committing. - Run
npm testfor code, runtime, plugin metadata, or command behavior changes. - Smoke-test Claude Code or Codex installs when changing host install flow, commands, MCP config, or setup behavior.
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.
- 2d ago First seen · 25 lines · 323 tokens per session scan A 2a2959f58e6d
antigravity-plugins AGENTS.md is an instructions file published in the GitHub repository iicmaster/antigravity-plugins (6 stars, last pushed 10d ago), licensed MIT. It adds 323 tokens to every session, about $0.0016 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.
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