Planning With Files
jarrodwatts/claude-code-config
Transforms workflow to use Manus-style persistent markdown files for planning, progress tracking, and knowledge storage.
Design and optimize AI agent action spaces, tool definitions, and observation formatting for higher completion rates.
Install Agent Harness Construction
$ npx skills add KartikLabhshetwar/mind-mentor --skill agent-harness-construction -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install KartikLabhshetwar/mind-mentor agent-harness-construction --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/KartikLabhshetwar/mind-mentor.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/agent-harness-construction .claude/skills/agent-harness-construction && rm -rf skills-srcUse ~/.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/
Install the "agent-harness-construction" agent skill from https://github.com/KartikLabhshetwar/mind-mentor/tree/main/.agents/skills/agent-harness-construction into .claude/skills/agent-harness-construction/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agent-harness-construction", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/KartikLabhshetwar/mind-mentor/tree/main/.agents/skills/agent-harness-constructionType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add KartikLabhshetwar/mind-mentor --skill agent-harness-construction -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install KartikLabhshetwar/mind-mentor agent-harness-construction --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/KartikLabhshetwar/mind-mentor.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/agent-harness-construction .agents/skills/agent-harness-construction && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "agent-harness-construction" agent skill from https://github.com/KartikLabhshetwar/mind-mentor/tree/main/.agents/skills/agent-harness-construction into .agents/skills/agent-harness-construction/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agent-harness-construction", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add KartikLabhshetwar/mind-mentor --skill agent-harness-construction -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install KartikLabhshetwar/mind-mentor agent-harness-construction --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/KartikLabhshetwar/mind-mentor.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/agent-harness-construction .cursor/skills/agent-harness-construction && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "agent-harness-construction" agent skill from https://github.com/KartikLabhshetwar/mind-mentor/tree/main/.agents/skills/agent-harness-construction into .cursor/skills/agent-harness-construction/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agent-harness-construction", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/KartikLabhshetwar/mind-mentor.git --path .agents/skills/agent-harness-construction--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add KartikLabhshetwar/mind-mentor --skill agent-harness-construction -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install KartikLabhshetwar/mind-mentor agent-harness-construction --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/KartikLabhshetwar/mind-mentor.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/agent-harness-construction .gemini/skills/agent-harness-construction && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "agent-harness-construction" agent skill from https://github.com/KartikLabhshetwar/mind-mentor/tree/main/.agents/skills/agent-harness-construction into .gemini/skills/agent-harness-construction/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agent-harness-construction", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install KartikLabhshetwar/mind-mentor agent-harness-constructionInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add KartikLabhshetwar/mind-mentor --skill agent-harness-construction -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/KartikLabhshetwar/mind-mentor.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/agent-harness-construction .github/skills/agent-harness-construction && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "agent-harness-construction" agent skill from https://github.com/KartikLabhshetwar/mind-mentor/tree/main/.agents/skills/agent-harness-construction into .github/skills/agent-harness-construction/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agent-harness-construction", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add KartikLabhshetwar/mind-mentor --skill agent-harness-construction -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install KartikLabhshetwar/mind-mentor agent-harness-construction --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/KartikLabhshetwar/mind-mentor.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/agent-harness-construction .opencode/skills/agent-harness-construction && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "agent-harness-construction" agent skill from https://github.com/KartikLabhshetwar/mind-mentor/tree/main/.agents/skills/agent-harness-construction into .opencode/skills/agent-harness-construction/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "agent-harness-construction", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
agent-harness-construction- GitHub stars
- 148
- Used in
- 6 other repos
- Token cost
- ~500 tokens
- SKILL.md length
- 234 words
- Files
- 1
- Skills in repo
- 2
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Design and optimize AI agent action spaces, tool definitions, and observation formatting for higher completion rates.
- Works in 4 steps: Action space quality → Observation quality → Recovery quality → …
- Tasks that involve Structured output and tool calling
- SKILL.md covers Core Model, Action Space Design, Granularity Rules and Observation Design, plus 5 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Agent Harness Construction is an agent skill from KartikLabhshetwar/mind-mentor. Design and optimize AI agent action spaces, tool definitions, and observation formatting for higher completion rates.
Its SKILL.md is about 500 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 AI & LLM Engineering, covering Structured output and tool calling. The repository describes itself as: Mind Mentor is an innovative AI-powered study assistant designed to revolutionize the way students learn and prepare for exams. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Structured output and tool calling
Example prompts
- “/agent-harness-construction”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Action space quality
- Observation quality
- Recovery quality
- Context budget quality
What it can do on your machine
Read from SKILL.md and the folder at commit 28873de. 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
No scripts in the folder and no shell commands in SKILL.md.
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
Agent Harness Construction loads about 500 tokens when it runs. Until then it costs about 36 tokens; SKILL.md has 234 words of instructions outside code blocks.
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
The full file from KartikLabhshetwar/mind-mentor at commit 28873de, republished under its Apache-2.0 licence (© KartikLabhshetwar). 234 words, ~500 tokens.
Download SKILL.mdSave it as
.claude/skills/agent-harness-construction/SKILL.md (or your agent's skills folder).- name
- agent-harness-construction
- description
- Design and optimize AI agent action spaces, tool definitions, and observation formatting for higher completion rates.
- origin
- ECC
Agent Harness Construction
Use this skill when you are improving how an agent plans, calls tools, recovers from errors, and converges on completion.
Core Model
Agent output quality is constrained by:
- Action space quality
- Observation quality
- Recovery quality
- Context budget quality
Action Space Design
- Use stable, explicit tool names.
- Keep inputs schema-first and narrow.
- Return deterministic output shapes.
- Avoid catch-all tools unless isolation is impossible.
Granularity Rules
- Use micro-tools for high-risk operations (deploy, migration, permissions).
- Use medium tools for common edit/read/search loops.
- Use macro-tools only when round-trip overhead is the dominant cost.
Observation Design
Every tool response should include:
status: success|warning|errorsummary: one-line resultnext_actions: actionable follow-upsartifacts: file paths / IDs
Error Recovery Contract
For every error path, include:
- root cause hint
- safe retry instruction
- explicit stop condition
Context Budgeting
- Keep system prompt minimal and invariant.
- Move large guidance into skills loaded on demand.
- Prefer references to files over inlining long documents.
- Compact at phase boundaries, not arbitrary token thresholds.
Architecture Pattern Guidance
- ReAct: best for exploratory tasks with uncertain path.
- Function-calling: best for structured deterministic flows.
- Hybrid (recommended): ReAct planning + typed tool execution.
Benchmarking
Track:
- completion rate
- retries per task
- pass@1 and pass@3
- cost per successful task
Anti-Patterns
- Too many tools with overlapping semantics.
- Opaque tool output with no recovery hints.
- Error-only output without next steps.
- Context overloading with irrelevant references.
© KartikLabhshetwar, 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
Just SKILL.md in .agents/skills/agent-harness-construction of KartikLabhshetwar/mind-mentor.
Open the folder on GitHubat commit 28873de
Used in 6 other repositories
We found 13 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 6 other GitHub owners. This page covers the copy in KartikLabhshetwar/mind-mentor, which our catalogue first saw on October 7, 2026.
- affaan-m/ECCskills/agent-harness-constructionpi/core/skills/agent-harness-construction
- loulanyue/awesome-claude-notesskills/agent-harness-constructiondocs/tr/skills/agent-harness-construction+4 more
- hashgraph-online/awesome-codex-pluginsplugins/Colin4k1024/tsp/skills/agent-harness-construction
- tpavanipradeep/everything-claude-codeskills/agent-harness-construction
- Sidiora-Labs/centra-llm-agentsprotocol/skills/agent-harness-construction
- templetongroup/radiantskills/agent-harness-construction
Compare with similar skills
Agent Harness Construction 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Agent Harness Construction this skillKartikLabhshetwar/mind-mentor | 148 | 6 repos | ~500 | Automated safety check: Pass | Apache-2.0 | |
| Planning With Filesjarrodwatts/claude-code-config | 1.1k | 5 repos | ~967 | Automated safety check: Pass | None | |
| Tool Use Data Synthesissunny-glow/Auto-BenchMax | 1.3k | — | ~3.3k | Automated safety check: Pass | None | |
| Prompt Engineering Patternswshobson/agents | 40k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Model Benchmarkstheopenco/llmgateway | 1.7k | — | ~1.1k | Automated safety check: Notes | Custom licence | |
| Agent Prompt Quality Barmastra-ai/mastra | 29k | — | ~2k | Automated safety check: Pass | Custom licence |
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Tool Use Data Synthesis
sunny-glow/Auto-BenchMax
Synthesize training data for ANY tool-use / agentic benchmark, in ANY repo.
Prompt Engineering Patterns
wshobson/agents
Reference for designing and tuning production LLM prompts: few-shot examples, chain-of-thought, structured outputs, templates and system prompts.
Model Benchmarks
theopenco/llmgateway
Run and report repository model or provider-mapping benchmarks.
Agent Prompt Quality Bar
mastra-ai/mastra
Universal quality bar and final audit rubric for any agent system prompt.
Add AI Chat Tool
ryokun6/ryos
Add or modify an AI chat tool ("Ask Ryo" capability) in ryOS.
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Related
Categories
Questions about Agent Harness Construction
What does Agent Harness Construction do?
Design and optimize AI agent action spaces, tool definitions, and observation formatting for higher completion rates. Agent Harness Construction is an agent skill from KartikLabhshetwar/mind-mentor. Design and optimize AI agent action spaces, tool definitions, and observation formatting for higher completion rates.
When should I use Agent Harness Construction?
Agent Harness Construction fits situations like: tasks that involve Structured output and tool calling.
How do I install Agent Harness Construction in Claude Code?
Run `npx skills add KartikLabhshetwar/mind-mentor --skill agent-harness-construction -a claude-code`. Or copy the skill folder (.agents/skills/agent-harness-construction in KartikLabhshetwar/mind-mentor) into .claude/skills/agent-harness-construction in your project. Claude Code loads it when a task matches its description.
How do I install Agent Harness Construction in Codex?
Run `npx skills add KartikLabhshetwar/mind-mentor --skill agent-harness-construction -a codex`. Or copy the skill folder (.agents/skills/agent-harness-construction in KartikLabhshetwar/mind-mentor) into .agents/skills/agent-harness-construction in your project. Codex loads it when a task matches its description.
Can I use Agent Harness Construction 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 KartikLabhshetwar/mind-mentor --skill agent-harness-construction -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/agent-harness-construction, .gemini/skills/agent-harness-construction, .github/skills/agent-harness-construction and .opencode/skills/agent-harness-construction in your project.
What does Agent Harness Construction need to run?
SKILL.md names no scripts, command-line tools or credentials: Agent Harness Construction is instructions for the agent only.
Does Agent Harness Construction 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 Agent Harness Construction 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 Agent Harness Construction use?
Agent Harness Construction is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Agent Harness Construction use?
About 500 tokens (SKILL.md is roughly 2k 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 Agent Harness Construction?
Skills that share tags, products or a category with Agent Harness Construction: Planning With Files (jarrodwatts/claude-code-config, 1.1k stars), Tool Use Data Synthesis (sunny-glow/Auto-BenchMax, 1.3k stars), Prompt Engineering Patterns (wshobson/agents, 40k stars) and Model Benchmarks (theopenco/llmgateway, 1.7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Agent Harness Construction?
KartikLabhshetwar (a GitHub user) maintains it in KartikLabhshetwar/mind-mentor, which has 148 GitHub stars. The repository holds 2 skills in this directory. The repository was last updated on May 18, 2026.
Source: KartikLabhshetwar/mind-mentor on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.