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harness-engineering-project

harness-engineering-project is a skill for Claude Code, Codex from Maxbay1017/harness-engineering-skills. It costs 78 tokens per session (2,599 once invoked), scanned A, original, no licence file.

A setup guide for adding shared AI instructions and project documentation to a code repository. It covers files such as AGENTS.md and ARCHITECTURE.md, plus related checks and configuration.

In plain words
What is it for?
Use it to start a new repository or add an AI guidance layer to an existing one. It helps define nested instructions, local skills, hooks, tool connections, and lint, type-check, test, and review steps.
Why use it?
It gives coding agents consistent project rules and context instead of making them infer how the repository works. It also helps organise plans for quality, security, and reliability.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

not rated 2repo 5mo ago A scan 78 tokens no licence

Good fit Use it to start a new repository or add an AI guidance layer to an existing one. It helps define nested instructions, local skills, hooks, tool connections, and lint, type-check, test, and review steps.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/maxbay1017/harness-engineering-skills/harness-engineering-project
View source ↗ Maxbay1017/harness-engineering-skills
Install

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.

Any agent
npx skills add Maxbay1017/harness-engineering-skills --skill harness-engineering-project
Clone the repo
git clone --depth 1 https://github.com/Maxbay1017/harness-engineering-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for harness-engineering-project

README.md
[![agentmods](https://agentmods.dev/badge/skills/maxbay1017/harness-engineering-skills/harness-engineering-project/github.svg)](https://agentmods.dev/skills/maxbay1017/harness-engineering-skills/harness-engineering-project)
Your own site
<a href="https://agentmods.dev/skills/maxbay1017/harness-engineering-skills/harness-engineering-project"><img src="https://agentmods.dev/badge/skills/maxbay1017/harness-engineering-skills/harness-engineering-project/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.

agentmods 80×15 button for harness-engineering-project

Your own site · 80×15
<a href="https://agentmods.dev/skills/maxbay1017/harness-engineering-skills/harness-engineering-project"><img src="https://agentmods.dev/badge/skills/maxbay1017/harness-engineering-skills/harness-engineering-project.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 78 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,599 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00078 $0.02599
Opus 5.5 $0.00031 $0.01040
Sonnet 5.5 $0.00016 $0.00520
Haiku 4.5 $0.00008 $0.00260

Measured 2mo ago against content hash 120ff4d153bf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

harness-engineering-project 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 2mo 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.

skills/harness-engineering-project/SKILL.md · 318 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 318 lines · 78 tokens per session scan A 120ff4d153bf

Subscribe to this mod's changes

harness-engineering-project is a skill published in the GitHub repository Maxbay1017/harness-engineering-skills (2 stars, last pushed 5mo ago), with no licence file. It adds 78 tokens to every session and 2,599 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 2026-08-31.

Building agentsWriting and docs
Related

harness-engineering-project compared with skills from other repositories

harness-engineering-project next to 6 skills from other repositories
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harness-engineering-projectMaxbay1017/harness-engineering-skillsSkill25mo agononeA78Claude Code, Codex
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local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79ktodayMITA200Claude Code, Codex
playwright-climicrosoft/playwrightSkill99ktodayApache-2.0A19Claude Code
systematic-debuggingobra/superpowersSkill314k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143ktodayMITA95Claude Code
chat-pet-sprite-creationmicrosoft/vscodeSkill195ktodayMITA53Claude Code, Codex