Repo Harness Assessment

What it does

When your agent uses it

• Evaluating repository agent-readiness
• Mapping harness roles
• Choosing the next smallest improvement
• Designing and reconciling agent entrypoints such as AGENTS.md

Example prompts

• “/repo-harness-assessment”

Workflow steps

8 steps, taken from the first numbered list in SKILL.md.

1. 1Use rg --files or find to list agent instruction files, docs, scripts, CI, work-state surfaces, ledgers, reports, and runtime artifacts.
2. 2Identify one canonical entrypoint and classify every other agent instruction file as a subtree override, symlink, generated mirror, or…
3. 3Keep the root entrypoint to scope, source-of-truth navigation, hard boundaries, and minimum commands; move detailed procedures to linked…
4. 4Map current artifacts to entrypoint, work-state, ledger, contracts, validation, runtime-evidence, and quality roles before proposing new…
5. 5Check for a stable validation matrix and whether failures connect to run IDs, request IDs, logs, screenshots, JSON/JUnit output, reviews…
6. 6If a required role is absent, define the minimum bootstrap artifact from references/build-when-missing.md; do not scaffold optional roles…
7. 7Add a mirror or pointer drift check when multiple agent instruction surfaces must stay aligned.
8. 8Compress gaps into no more than three next steps, ordered by value and risk.

What it can do on your machine

Read from SKILL.md and the folder at commit 3e1456a. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • rg

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Repo Harness Assessment loads about 1.3k tokens when it runs, and up to ~2.3k if it reads all its reference files. Until then it costs about 65 tokens; SKILL.md has 592 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~65

When it runs · the whole SKILL.md, loaded when a task matches

~1.3k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~2.3k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from hashgraph-online/awesome-codex-plugins at commit 3e1456a, republished under its Apache-2.0 licence (© hashgraph-online). 592 words, ~1,303 tokens.

name

repo-harness-assessment

description

Use when evaluating repository agent-readiness, mapping harness roles, choosing the next smallest improvement, or designing and reconciling agent entrypoints such as AGENTS.md, CLAUDE.md, GEMINI.md, Cursor rules, or GitHub instructions.

# Repo Harness Assessment

## Detected Mapping
- entrypoint:
- mirrors / subtree overrides:
- work-state:
- ledger:
- contracts:
- validation:
- runtime-evidence:
- quality:

## Entrypoint Decision
- canonical file:
- navigation changes:
- drift prevention:

## Current State
- Agent entrypoint:
- Source-of-truth docs:
- Validation surface:
- Runtime evidence:
- Delivery/ledger:

## Gaps
1.
2.
3.

## Recommended Minimum Slice
- First:
- Then:
- Finally:

## Do Not Build Yet
-

## Validation Needed
-

© hashgraph-online, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (references) in plugins/yfge/agent-harness-skills/skills/repo-harness-assessment of hashgraph-online/awesome-codex-plugins.

• SKILL.md
• references/build-when-missing.md
• references/entrypoint-policy.md

Open the folder on GitHubat commit 3e1456a