agentic-harness
Use when designing, reviewing, or debugging agent loops, harness construction, tool/action spaces, or multi-agent orchestration.
Skill by HarleyBartles
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Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/harleybartles-agentic-harness
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Use cases: agent-building
Reviews
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Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/agentic-harness
What's inside
- Skill name
agentic-harness- Description
- Use when designing, reviewing, or debugging agent loops, harness construction, tool/action spaces, or multi-agent orchestration.
- License
- MIT
- Metadata
- owner: Harley Bartles · status: active · source-id: agentic-harness · source-path: skills/agentic-harness/SKILL.md · provenance-name: Agentic Harness first-party skill · source-category: first_party
- Instructions
- 27 lines in SKILL.md · view on GitHub
Files (6)
- SKILL.md
- openai.yaml · agents/
- CITATIONS.md · assets/authority/
- authority.yaml · assets/authority/
- source-map.yaml · assets/authority/
- operational-guidance.md · references/
SKILL.md (first lines)
# Agentic Harness Use this skill when designing or reviewing agent loops, harness construction, tool/action spaces, and multi-agent orchestration. ## When to Use - Designing or reviewing an agent loop. - Choosing or constructing a harness for tools and actions. - Orchestrating multiple agents or merging parallel results. ## Core Pattern 1. Model the loop explicitly: input, plan, tool call, observation, output, stop check. 2. Define tools with typed schemas and documented side effects; keep the action space small and composable. 3. Isolate state between parallel agents (for example, git worktrees or sandboxed contexts) and merge through explicit handoff. 4. Set iteration and error budgets to prevent silent infinite loops. 5. Test the harness against deterministic trajectories before scaling to open-ended work. ## Common Mistakes - Leaking shared mutable state between parallel agents. → Isolate contexts and merge explicitly. - Implicit infinite loops. → Set iteration and error budgets. - Opaque tool failures. → Normalize errors into structured observations. Load `references/operational-guidance.md` for deeper coverage of loop design, tool spaces, orchestration, and harness construction.
From HarleyBartles/agent-asset-marketplace, MIT.
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Signals
- Stars
- 0
- Forks
- 0
- Open issues
- 0
- Last commit (this folder)
- Sep 28, 2026 (1 month ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- MIT
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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Cite this page
agentic-harness skill. Agent Mart. https://agentmart.dev/skills/harleybartles-agentic-harness (last updated 2026-10-24)