harness-accept

harness-accept is a skill for Claude Code, Codex from Chachamaru127/claude-code-harness. It costs 145 tokens per session (4,984 once invoked), scanned A, original, MIT.

A guide for producing a single-file HTML acceptance demo for a completed task. It presents agreed checks as verified or unverified so a non-engineer can decide whether to ship, wait, or reject the work.

In plain words
What is it for?
Use it after implementation to retrieve the task’s saved acceptance criteria, show their status in HTML, and provide a ship, wait, or reject recommendation.
Why use it?
It turns technical completion checks into a view that a client or producer can use for an acceptance decision.

Skill for Claude CodeCodex

Written for Claude Code and Codex: allowed-tools in frontmatter, but also installed under .codex/. Also seen: mentions subagents; positional $N argument.

Part of the claude-code-harness plugin — 25 skills, 5 commands, 5 agents, 27 hooks shipped together

About the project

Claude Code Harness is a development workflow for coding agents that organizes work into planning, implementation, review, synchronization, and release stages. It helps developers keep specifications, tests, independent reviews, and release evidence connected while using tools such as Claude Code, Codex CLI, Cursor, or Grok.

Chachamaru127/claude-code-harness · 3,087 stars · on GitHub

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.

agentmods
npx agentmods add skills/chachamaru127/claude-code-harness/harness-accept
Any agent
npx skills add Chachamaru127/claude-code-harness --skill harness-accept
Clone the repo
git clone --depth 1 https://github.com/Chachamaru127/claude-code-harness

Made for: Claude Code, Codex.

Or install claude-code-harness, the plugin that ships this one along with the rest of its 25 skills, 5 commands, 5 agents, 27 hooks.

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-accept

README.md
[![agentmods](https://agentmods.dev/badge/skills/chachamaru127/claude-code-harness/harness-accept.svg)](https://agentmods.dev/skills/chachamaru127/claude-code-harness/harness-accept)
Your own site
<a href="https://agentmods.dev/skills/chachamaru127/claude-code-harness/harness-accept"><img src="https://agentmods.dev/badge/skills/chachamaru127/claude-code-harness/harness-accept.svg" alt="Measured on agentmods" height="20"></a>
Per session 145 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,984 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00145 $0.04984
Opus 5 $0.00072 $0.02492
Sonnet 5 $0.00029 $0.00997
Haiku 4.5 $0.00015 $0.00498

Measured 6d ago against content hash ba365958064b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

harness-accept 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 6d 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.

codex/.codex/skills/harness-accept/SKILL.md · 307 lines

How it starts

The opening of the file, as written. The whole thing — 307 lines — stays where its author put it; the contents beside it link to each section on GitHub.

harness-accept

非エンジニアの発注者・プロデューサー職向けに、実装完了タスクの受け入れ判断 (ship / wait / reject) を HTML 1 枚 で提示するスキル。 発注者の認知負荷ピーク (3) 受け入れ判断の段階で使う。

Phase 65.1.x (harness-plan-brief) の対構造として動作し、Plan Brief で承認した acceptance_criteria を read 側で取り戻して評価する。

Quick Reference

  • Acceptance Demo を作って」 → このスキル
  • 受け入れ判断したい」 → このスキル
  • ship/wait/reject 判定」 → このスキル

責任境界

範囲 このスキルの責務
検索 現プロジェクトのみ (project: <current>, strict_project: true を必ず指定)
クロスプロジェクト やらない (Phase 65.3 以降で --cross-project-group <name> flag で opt-in 解放)
Plan Brief 連携 user_request_hash を join key として personal-preference.v1 (Phase 65.1.4) を read
書き込み やらない (Acceptance 承認後の memory write は accept-record-decision.sh の責務)
recommendation 算出 verified / 全 criteria の比率で 0.8 / 0.5 閾値判定。ロジックは scripts/render-html.sh 直前で計算

入力

引数 [task-description] にユーザーの request を渡す (Plan Brief 時と同じ文を使う)。 引数なしの場合は対話形式で受け取る。

出力

出力 パス 形式
Acceptance Demo HTML .claude/state/views/accept-<timestamp>.html 単独で開ける HTML (no server, no JS framework)
Acceptance context JSON .claude/state/views/accept-<timestamp>.context.json acceptance-context.v1 schema

Schema: acceptance-context.v1

{
  "schema": "acceptance-context.v1",
  "user_request": "string",
  "user_request_hash": "sha256 hex (Plan Brief 側の personal-preference.v1 と join)",
  "demo_artifacts": [
    { "kind": "video|screenshot|text", "path": "string" }
  ],
  "verified_criteria": [
    { "name": "string", "passed": true, "evidence": "string" }
  ],
  "tdd_verified": "yes|no|not-required|skip:<reason>",
  "unverified_caveats": ["string"],
  "past_issue_patterns": [
    { "pattern_id": "P5", "title": "string", "verified_in_current_task": true }
  ],
  "recommendation": "ship|wait|reject",
  "recommendation_evidence": ["string"],
  "project": "string",
  "generated_at": "ISO8601",
  "blind_evaluation": {
    "applicable": true,
    "eligibility_reason": "persuasive-doc|functional-skip|not_applicable|unavailable",
    "audience_purpose_line": "string",
    "evaluator_believable": "believable|not_believable|uncertain",
    "evaluator_useful": "useful|not_useful|uncertain",
    "evaluator_friction_points": ["string"],
    "internal_recommendation": "ship|wait|reject",
    "divergence": "none|internal_high_evaluator_low|internal_low_evaluator_high",
    "divergence_notes": "string"
  }
}

Read the full file on GitHub · 307 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 6d ago First seen · 307 lines · 145 tokens per session scan A ba365958064b

Subscribe to this mod's changes

harness-accept is a skill published in the GitHub repository Chachamaru127/claude-code-harness (3,087 stars, last pushed 5d ago), licensed MIT. It adds 145 tokens to every session and 4,984 once invoked, about $0.0007 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 2026-08-30.

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