claude-skill: Instructions file for Codex

AGENTS.md

claude-skill AGENTS.md is an instructions file for Codex, OpenCode from axiom-browser-automation/claude-skill. It costs 723 tokens per session, scanned A, original, ISC.

Repository instructions describing where the canonical knowledge for Axiom browser-automation tools and APIs is kept. They explain how that knowledge is copied into other agent and sandbox environments.

In plain words
What is it for?
Use them when maintaining the shared manuals, API references, action vocabulary, or generated agent instructions for Axiom browser automation.
Why use it?
They reduce conflicting documentation by identifying one source to edit instead of changing generated copies. This helps keep desktop and automated agents aligned.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is axiom-browser-automation/claude-skill's own configuration. It tells Codex and OpenCode how to work on claude-skill itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-skill configures →

Reuse

Borrowing it

Nothing to install: this file belongs to axiom-browser-automation/claude-skill. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/axiom-browser-automation/claude-skill/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/axiom-browser-automation/claude-skill

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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README.md
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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.

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<a href="https://agentmods.dev/instructions/axiom-browser-automation/claude-skill/agents-md"><img src="https://agentmods.dev/badge/instructions/axiom-browser-automation/claude-skill/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 723 This file is loaded in full into every session.
When invoked 723 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00723 $0.00723
Opus 5.5 $0.00289 $0.00289
Sonnet 5.5 $0.00145 $0.00145
Haiku 4.5 $0.00072 $0.00072

Measured 24d ago against content hash c2595158a48d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-skill 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 24d 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.

AGENTS.md · 49 lines

What it actually says

Agent notes — this repo is the canonical shared knowledge source

All agent-facing knowledge about the Axiom MCP tools and APIs has ONE canonical home: plugins/axiom/skills/axiom/references/ in this repo — tool manuals under tools/, the @axiom_ai/api surface + method allowlists, the action vocabulary, and the shared browser-automation rules. Two audiences consume it:

  • Desktop Claude users — via the axiom skill itself.
  • The OpenHands configure agent — via GENERATED copies: the backend's embedded agent tools (in every agent conversation's system prompt) and the agent sandbox image's tools-*.md + AXIOM_AGENT_SKILL.md (built from a template that pulls shared prose with <!-- INCLUDE <references-path> --> markers).

Rules when editing knowledge here:

  • Never edit a synced or generated copy in the consumer repos (each carries a do-not-edit banner). Edit the canon here — or the sandbox template, for OpenHands-runtime-specific prose. The consumers are regenerated by the maintainers' sync step, which writes into the backend and infrastructure repositories: that is a deliberate OpenHands deploy step on those repos' own branches, NOT something to run as part of an edit here (this skill also ships to the desktop app on its own). --check reporting drift until that deploy is the expected state.
  • Content true for BOTH audiences belongs in references/; only runtime-specific prose stays in an actor file or template. The desktop skill's account-setup/key-minting content must NEVER flow to the OpenHands agent (its credential is an injected job-scoped secret).
  • A canon edit has deploy costs: lar deploy (new conversations embed it; parked warm slots self-invalidate via prompt_hash) and a sandbox image rebake for on-disk copies. Batch edits; bump the version in package.json and add a CHANGELOG entry — consumers pin to it.
  • references/action-vocabulary.json is GENERATED, never hand-edited: npm run build:vocabulary derives it from the widget catalogue axiom_mcp ships (its nested axiom_builder_ir submodule, not the sibling checkout of the same repo). Run it whenever that pin moves — otherwise agents author widgets compile_ir rejects as unknown, and never learn about new ones. npm run build:vocabulary:check is the drift detector and runs in the test suite, so CI catches a stale file on its own. Fields this repo adds on top of the source (WidgetBotCreate's isLooping/afterLoopUpdate) are carried forward by the generator. Its schema is also an API: axiom_mcp's list_actions reads the same catalogue.
  • Verify headlessly before shipping: npm run verify — the single gate (generated-copy drift check + lint + the full jest suite; no network, no key). A change here isn't done until it's green.
  • Agent precedence, by design: job brief > actor skill > tool manuals. Brief-level policy (never-invent user values, ask-on-ambiguity) lives in the backend's agent job brief, not here.
Changes

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.

  1. 24d ago First seen · 49 lines · 723 tokens per session scan A c2595158a48d

Subscribe to this mod's changes

claude-skill AGENTS.md is an instructions file published in the GitHub repository axiom-browser-automation/claude-skill (4 stars, last pushed 25d ago), licensed ISC. It adds 723 tokens to every session, about $0.0029 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 2026-09-24.

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