agentic-dev-playbook-with-harness CLAUDE.md

agentic-dev-playbook-with-harness CLAUDE.md is an instructions file for coding agents from tedwon/agentic-dev-playbook-with-harness. It costs 199 tokens per session, scanned A, original, no licence file.

Instructions for Claude Code about harness engineering, self-correction, protected files, and extra build commands. Harness engineering means designing the checks and working process around an AI coding agent.

In plain words
What is it for?
Use them to guide implementation, self-checking, file protection, and project build commands.
Why use it?
They help the agent follow the project’s development process and avoid changing protected files.

Instructions file

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 instructions/tedwon/agentic-dev-playbook-with-harness/claude-md
Clone the repo
git clone --depth 1 https://github.com/tedwon/agentic-dev-playbook-with-harness

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 agentic-dev-playbook-with-harness CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/tedwon/agentic-dev-playbook-with-harness/claude-md.svg)](https://agentmods.dev/instructions/tedwon/agentic-dev-playbook-with-harness/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/tedwon/agentic-dev-playbook-with-harness/claude-md"><img src="https://agentmods.dev/badge/instructions/tedwon/agentic-dev-playbook-with-harness/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 199 This file is loaded in full into every session.
When invoked 199 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00199 $0.00199
Opus 5 $0.00100 $0.00100
Sonnet 5 $0.00040 $0.00040
Haiku 4.5 $0.00020 $0.00020

Measured 5d ago against content hash ee5db87eddf1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

agentic-dev-playbook-with-harness CLAUDE.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 5d 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.

CLAUDE.md · 30 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. 5d ago First seen · 30 lines · 199 tokens per session scan A ee5db87eddf1

Subscribe to this mod's changes

agentic-dev-playbook-with-harness CLAUDE.md is an instructions file published in the GitHub repository tedwon/agentic-dev-playbook-with-harness (4 stars, last pushed 4mo ago), with no licence file. It adds 199 tokens to every session, about $0.0010 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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