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Minimal Agent Design

Agent skill
1 skill

Reference for designing minimal, hackable coding-agent harnesses — linear message history over branching state, bash-only tool surfaces over bespoke tool abstractions, and subprocess isolation for safe sandboxing — inspired by mini-swe-agent's ~100-line agent achieving strong SWE-bench results through radical simplicity. Use this whenever the user is building their own agent harness or orchestration loop, debugging why an agent's behavior is hard to trace, deciding whether to add a custom tool or just let the model use a shell, or evaluating whether an agent's architecture has grown more complex than the problem actually requires.

Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI

Supported by the Atlas install prompt. Skill-specific requirements vary.

Skill stats

Skills1CategoryDeveloper toolsStars0

About this skill

Reference for designing minimal, hackable coding-agent harnesses — linear message history over branching state, bash-only tool surfaces over bespoke tool abstractions, and subprocess isolation for safe sandboxing — inspired by mini-swe-agent's ~100-line agent achieving strong SWE-bench results through radical simplicity. Use this whenever the user is building their own agent harness or orchestration loop, debugging why an agent's behavior is hard to trace, deciding whether to add a custom tool or just let the model use a shell, or evaluating whether an agent's architecture has grown more complex than the problem actually requires.

Quick start

  1. Copy the install prompt. Use the green button above this README.
  2. Send it to your agent. Paste it into your coding agent’s chat and send.
  3. Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.
Review, license & listing details
Review the source before using this skill

This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.

Automated security scan: Partial

Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.

0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1

Content SHA-256: 5b89f8d312fab57134da5494c97a67915850d8fb8a56d4dc27b1c166638869c0

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About this listing

Category
Developer tools
Reported license
Not specified
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.