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 skills add frankxai/claude-skills-library --skill harness-integrationgit clone --depth 1 https://github.com/frankxai/claude-skills-libraryWrote 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/skills/frankxai/claude-skills-library/harness-integration)<a href="https://agentmods.dev/skills/frankxai/claude-skills-library/harness-integration"><img src="https://agentmods.dev/badge/skills/frankxai/claude-skills-library/harness-integration/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/skills/frankxai/claude-skills-library/harness-integration"><img src="https://agentmods.dev/badge/skills/frankxai/claude-skills-library/harness-integration.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 | $0.00078 | $0.00286 |
| Opus 5.5 | $0.00031 | $0.00114 |
| Sonnet 5.5 | $0.00016 | $0.00057 |
| Haiku 4.5 | $0.00008 | $0.00029 |
Grade A, and why
harness-integration 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 13d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- harness-integration — 100% identical, 0 lines differ
What it actually says
Grok Harness Integration (ACOS v10+)
Principles
- Frank DNA in every response. God 99 via gates.
- Shared catalog (~/.claude/skills + ~/.grok/skills + project .grok/) source of truth.
- On start: echo excellence status, read GROK.md/CLAUDE.md/AGENTS.md (deeper wins).
- Gates before edit: rules check, repo-mastery, plan-reviews, gstack qa (if web), santa/verification.
- Subagent swarm + delegate: output exact claude/agy/gemini commands with injected rules for complex tasks.
Excellence Path (always)
repo-mastery → plan-*-review → verification-loop + santa-method → gstack (qa/browse/design/benchmark) → cso if needed → ship with evidence.
Composes with all ACOS skills (gstack 20+, content, dev, security). Use /skills in Grok TUI or natural language.
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.
- 13d ago Changed · +78 tokens per session aa5b6e9fd2c3
- 1mo ago First seen · 19 lines · 0 tokens per session scan A 5df67a530211
harness-integration is a skill published in the GitHub repository frankxai/claude-skills-library (47 stars, last pushed today), licensed MIT. It adds 78 tokens to every session and 286 once invoked, about $0.0003 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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Token optimization guide for Claude Code. This skill should be used when the user wants to reduce API costs, learn model routing strategies, or understand how to use free/cheaper tools (Ollama, Haiku) instead of burning expensive Claude tokens on routine tasks. Triggers on: save tokens, reduce costs, token tips, cheap…
wayfinder
A planning method that maps a large, uncertain project into linked decision tickets in a repository's issue tracker. An issue tracker is a system for recording and organizing project work.
scaffold-exercises
A directory scaffold for course exercises, with sections, exercise folders, and optional problem, solution, or explanation versions. It creates the required Markdown files and checks the result with the repository's linter.
domain-modeling
A practice for building and maintaining a project’s domain model: the shared terms, concrete scenarios, and recorded architecture decisions that describe what the software is about.
migrate-to-shoehorn
A testing guide for Shoehorn, a TypeScript library that lets tests provide only the fields they need from a larger data type.
ask-matt
A skill router that helps choose the right workflow or skill for the current task. It maps work from an initial idea through building and shipping, with separate paths for research, prototypes, and multi-session projects.