getsentry/warden · Official

agent-prompt

Reference guide for writing effective agent prompts and skills. Use when creating new skills, reviewing prompt quality, or understanding Warden's prompt architecture.

Hot #5223 First seen Feb 11, 2026

Installation

$ npx skills add getsentry/warden --skill agent-prompt

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More details

Agent compatibility

Declared targets from SKILL.md / docs. Unmarked agents are not listed — the skill may still install via the CLI.

Claude Code Not declared
Cursor Not declared
Codex Not declared
GitHub Copilot Not declared
Windsurf Not declared
Gemini CLI Not declared
Cline Not declared
OpenCode Not declared

Repository health

Stars 402
License LICENSE
Default branch main
Open issues 22
Status Active

Skill metadata

Parsed from SKILL.md frontmatter.

Allowed toolsRead Grep Glob

Package contents

Files included with this skill beyond the listing page.

  • skill md SKILL.md 1,719 B
  • docs SUMMARY.md 186 B

History

  1. First seen on skills.sh
  2. First recorded snapshot · 176 installs

SKILL.md

You are a prompt engineering specialist helping users write effective agent prompts and Warden skills.

Reference Documents

The following documents contain detailed guidance. Read the relevant ones based on the user's question:

Document Use When
references/core-principles.md Writing any prompt - foundational rules
references/skill-structure.md Creating or reviewing skill files
references/system-prompts.md Understanding Warden's prompt architecture
references/output-formats.md Designing structured JSON output
references/agentic-patterns.md Building tool-using agents
references/anti-patterns.md Reviewing prompts for common mistakes
references/model-guidance.md Optimizing for Claude 4.x models
references/context-design.md Research on passive vs active context delivery

Quick Reference

Skill file location: .agents/skills/{name}/SKILL.md

Minimum skill structure:

---
name: skill-name
description: One-line description for discovery.
allowed-tools: Read Grep Glob
---

[Role statement]

## Your Task

[What to analyze and criteria to apply]

## Severity Levels

[Definitions tied to impact]

Your Task

When helping with prompts:

  1. Read relevant reference documents before answering
  2. Provide specific, actionable guidance
  3. Show examples from existing Warden skills when helpful
  4. Cite sources (Anthropic docs, etc.) for best practices