Agent skill

Mh Wiki

by HangYu8123 in HangYu8123/mini-harness

mini-harness · consolidate execution trajectories (.harness/exectraj/) into repoinfo/harnesseffect.md — which parts of the harness helped or hurt, root causes, and one proposed change at a time.

No licenceAuto-check passedDevelopment

Install Mh Wiki

skills CLI
$ npx skills add HangYu8123/mini-harness --skill mh-wiki -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install HangYu8123/mini-harness mh-wiki --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/HangYu8123/mini-harness.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/mh-wiki .claude/skills/mh-wiki && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
mh-wiki
GitHub stars
199
Token cost
~1.6k tokens
SKILL.md length
723 words
Files
1
Skills in repo
8
Repo updated
First seen
Licence
None found

At a glance

mini-harness · consolidate execution trajectories (.harness/exectraj/) into repoinfo/harnesseffect.md — which parts of the harness helped or hurt, root causes, and one proposed change at a time.

  • Works in 4 steps: Fold each trajectory's harness effect,… → Tally per page: helped / hurt / neutral,… → A page with ≥ 3 runs and a clear… → …
  • Tasks that involve Root cause analysis
  • SKILL.md covers Consolidate (default) — every…, Propose (on request, or from… and Status line
  • Calls bash

What it does

Mh Wiki is an agent skill from HangYu8123/mini-harness. mini-harness · consolidate execution trajectories (.harness/exectraj/) into repoinfo/harnesseffect.md — which parts of the harness helped or hurt, root causes, and one proposed change at a time. Runs only when invoked (/mh-wiki · $mh-wiki · /mini-harness wiki) — never inside another request.

Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Root cause analysis. The repository describes itself as: A local minimized harness, with simplified output and logs for self-evolve.

When your agent uses it

  • Tasks that involve Root cause analysis

Example prompts

  • “/mh-wiki”

Workflow steps

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

  1. Fold each trajectory's harness effect, advisory, dispositions, workers, usage, memory consulted, friction, and user choices lines (older…
  2. Tally per page: helped / hurt / neutral, quoting the last three one-line reasons; for advisors also items Σm → adopted Σn; for memory…
  3. A page with ≥ 3 runs and a clear direction becomes supported with one fix: — one atomic change (a dial default, an agent-definition line…
  4. Update the Index and set consolidated through · trajectories total, append one Evolution-log line naming the first and last filename of…

What it can do on your machine

Read from SKILL.md and the folder at commit baa821f. 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:

    • bash

    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

Mh Wiki loads about 1.6k tokens when it runs. Until then it costs about 76 tokens; SKILL.md has 723 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~76
When it runs · the whole SKILL.md, loaded when a task matches
~1.6k

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

Auto-check passed

The automated check found no risky patterns in SKILL.md.

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 723 words (~1,644 tokens).

“Model: WikiSkill (arXiv:2608.27454) — raw traces → wiki pattern pages → validated skill changes. The wiki is never rolled back; the executor never reads it at the start of a run (the paper's ablation: 63.7 → 60.9 with executor access)…”

— opening of SKILL.md by HangYu8123
name
mh-wiki
argument-hint
[consolidate | propose]

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/mh-wiki of HangYu8123/mini-harness.

Open the folder on GitHubat commit baa821f

Compare with similar skills

Mh Wiki next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Mh Wiki compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Mh Wiki this skillHangYu8123/mini-harness199—~1.6kAutomated safety check: PassNone
OpenLogi macOS Permissions TriageAprilNEA/OpenLogi23k—~2.5kAutomated safety check: NotesApache-2.0
Bug Finder for daisyUIsaadeghi/daisyui43k—~2.3kAutomated safety check: PassMIT
Root Cause Debugginggarrytan/gstack136k—~1.4kAutomated safety check: PassMIT
Review PRapache/shardingsphere21k—~6.5kAutomated safety check: PassApache-2.0
Graph-Based Bug Tracingtirth8205/code-review-graph32k1 repos~287Automated safety check: PassMIT

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  • Mh Init

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  • Mh Loop

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Categories

Questions about Mh Wiki

What does Mh Wiki do?

mini-harness · consolidate execution trajectories (.harness/exectraj/) into repoinfo/harnesseffect.md — which parts of the harness helped or hurt, root causes, and one proposed change at a time. Mh Wiki is an agent skill from HangYu8123/mini-harness.md — which parts of the harness helped or hurt, root causes, and one proposed change at a time.

When should I use Mh Wiki?

Mh Wiki fits situations like: tasks that involve Root cause analysis.

How do I install Mh Wiki in Claude Code?

Run `npx skills add HangYu8123/mini-harness --skill mh-wiki -a claude-code`. Or copy the skill folder (skills/mh-wiki in HangYu8123/mini-harness) into .claude/skills/mh-wiki in your project. Claude Code loads it when a task matches its description.

How do I install Mh Wiki in Codex?

Run `npx skills add HangYu8123/mini-harness --skill mh-wiki -a codex`. Or copy the skill folder (skills/mh-wiki in HangYu8123/mini-harness) into .agents/skills/mh-wiki in your project. Codex loads it when a task matches its description.

Can I use Mh Wiki in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add HangYu8123/mini-harness --skill mh-wiki -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mh-wiki, .gemini/skills/mh-wiki, .github/skills/mh-wiki and .opencode/skills/mh-wiki in your project.

What does Mh Wiki need to run?

Going by SKILL.md and its folder, Mh Wiki needs the command-line tools its instructions call (bash).

Does Mh Wiki access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Mh Wiki safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Mh Wiki use?

No licence was found for Mh Wiki or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Mh Wiki use?

About 1.6k tokens (SKILL.md is roughly 6.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Mh Wiki?

Skills that share tags, products or a category with Mh Wiki: OpenLogi macOS Permissions Triage (AprilNEA/OpenLogi, 23k stars), Bug Finder for daisyUI (saadeghi/daisyui, 43k stars), Root Cause Debugging (garrytan/gstack, 136k stars) and Review PR (apache/shardingsphere, 21k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Mh Wiki?

HangYu8123 (a GitHub user) maintains it in HangYu8123/mini-harness, which has 199 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on September 22, 2026.

Source: HangYu8123/mini-harness on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.