🐛 Fix agent descriptions for Claude Code YAML parser compatibility

[TechNickAI]

Problem

Claude Code's agent discovery system doesn't properly parse YAML block scalars (> or |) or multi-line descriptions in agent frontmatter. Additionally, prettier wraps long lines differently across repos with varying configs, causing agent descriptions to break when installed in other projects.

This made agents unreliable - some would register, others wouldn't, depending on description length and formatting.

Solution

Keep all agent descriptions under 88 characters on a single line. This works universally across all prettier configs and Claude Code's parser.

Changes

✅ Rewrote all 13 agent descriptions to be concise (<88 chars) and LLM-focused
✅ Added 4 CLAUDE.md files documenting the 88-char constraint and best practices
✅ Removed unnecessary tools and model frontmatter fields for cleaner config
✅ Descriptions now focus on WHEN to invoke agents (trigger conditions for LLM)
✅ Tested with prettier - confirmed no wrapping occurs

Testing

• Ran prettier on all agent files - no descriptions wrapped
• All descriptions under 88 characters
• Descriptions follow prompt-engineering.mdc guidelines (LLM-focused trigger conditions)

Impact

Agents will now work reliably across all installations regardless of prettier configuration. The concise descriptions are optimized for LLM consumption (when to invoke) rather than human marketing copy.

🤖 Generated with Claude Code

[greptile-apps]

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[claude]

PR Review: Agent YAML Description Compatibility Fix

Summary

This PR successfully addresses a real compatibility issue with Claude Code's YAML parser. The solution is pragmatic, well-documented, and follows the project's own best practices. Approved with minor suggestions below.

✅ Strengths

1. Solves a Real Problem

The issue is legitimate - Claude Code's YAML parser doesn't handle block scalars, and prettier's varying configs across repos can break agent descriptions. This fix ensures reliability across all installations.

2. Well-Documented Solution

The four CLAUDE.md files added to agent directories provide excellent guidance:

• Clear constraints (single line, <88 chars, use quotes)
• Shows what works and what doesn't
• Includes practical examples
• Follows prompt-engineering.mdc by avoiding anti-patterns

3. Consistent Implementation

All 13 agent descriptions have been successfully condensed:

• Longest is 86 chars (within limit)
• All follow "Invoke for/when..." pattern
• Focus on WHEN to invoke (trigger conditions) rather than WHAT they do
• Properly quoted to handle special characters

4. Follows Project Standards

The PR description follows git-interaction.mdc conventions with clear problem/solution/testing sections. The documentation aligns with prompt-engineering.mdc principles.

🔍 Code Quality Observations

Positive

• Character counts verified: All descriptions ≤88 chars ✓
• Pattern consistency: All use "Invoke for/when..." format ✓
• Quoted strings: All descriptions properly quoted ✓
• No formatting: Removed unnecessary frontmatter fields (tools, model) for cleaner config ✓

Documentation Quality

The CLAUDE.md files demonstrate excellent prompt engineering:

• Positive framing ("what works" before "what doesn't")
• Concrete examples with actual YAML
• Clear, actionable constraints
• LLM-optimized structure

🤔 Minor Suggestions

1. Consistency in Description Phrasing

Most descriptions use "Invoke for X" or "Invoke when X", but debugger.md uses a longer phrase:

description: "Invoke for errors, test failures, or unexpected behavior requiring root cause analysis"

Consider shortening to match the pattern:

description: "Invoke for errors, test failures, or unexpected behavior"

The "requiring root cause analysis" is implied by the agent's purpose and adds 32 chars.

2. Documentation Location

The CLAUDE.md files are duplicated across 4 directories:

• .claude/agents/CLAUDE.md
• plugins/code-review/agents/CLAUDE.md
• plugins/dev-agents/agents/CLAUDE.md
• plugins/git-commits/agents/CLAUDE.md

Consider: Could these symlink to a canonical version (like how .cursor/commands/ symlinks to .claude/commands/)? This follows the "single source of truth" principle mentioned in the project's CLAUDE.md.

3. Prettier Config Note

The .prettierrc already has printWidth: 88, which validates the 88-char choice. Consider adding a comment in the prettier config explaining why 88 was chosen for YAML frontmatter compatibility:

{
    "printWidth": 88,  // Also ensures YAML frontmatter descriptions don't wrap in agent files
    ...
}

🔒 Security & Performance

• No security concerns: Changes are purely documentation and metadata
• No performance impact: Shorter strings actually reduce parsing overhead
• No breaking changes: The changes maintain backward compatibility

🧪 Test Coverage

The PR description indicates manual testing:

• ✓ Prettier run on all agent files - no wrapping
• ✓ All descriptions under 88 chars verified

Suggested addition: Consider adding a simple test script that validates agent frontmatter:

#!/bin/bash
# scripts/validate-agents.sh
find . -name "*.md" -path "*/agents/*" -not -name "CLAUDE.md" -exec sh -c '
  desc_line=$(grep "^description:" "$1")
  if [ -n "$desc_line" ]; then
    length=${#desc_line}
    if [ $length -gt 100 ]; then  # "description: " + 88 chars + quotes
      echo "WARN: $1 description may be too long"
    fi
  fi
' _ {} \;

This would catch future violations during CI.

📝 Alignment with Project Rules

Reviewing against rules/prompt-engineering.mdc:

✅ Minimal formatting - Documentation avoids excessive markdown
✅ Positive patterns - Shows correct examples prominently
✅ LLM-focused - Descriptions target LLM consumption, not human marketing
✅ Clarity over brevity - Where it counts (in the agent bodies), clarity is preserved
✅ Goal-focused - Descriptions specify WHEN to invoke, not HOW they work

🎯 Final Verdict

LGTM - Approve with enthusiasm 🎉

This is a well-executed fix that:

• Solves a real compatibility problem
• Documents the constraints clearly
• Implements the solution consistently
• Follows the project's own best practices
• Improves reliability across installations

The minor suggestions above are optional enhancements, not blockers.

Impact: This makes the agent system production-ready for distribution across varying prettier configurations. Excellent work on identifying and solving this edge case.

---

Reviewed by Claude Code following CLAUDE.md guidelines

[claude]

PR Review: Fix Agent Descriptions for Claude Code YAML Parser Compatibility

Summary

This PR addresses a real technical constraint in Claude Code's YAML parser by standardizing agent descriptions to under 75 characters on a single line. The solution is practical, well-documented, and follows the project's prompt engineering best practices.

Strengths

Clear Problem Identification: The PR correctly identifies that Claude Code doesn't parse YAML block scalars (> or |) and that prettier wrapping causes registration failures. The 75-character limit (accounting for the 13-character description: prefix) is mathematically sound.

Comprehensive Documentation: Adding 4 CLAUDE.md files in agent directories provides clear guidance for future agent creation. The documentation is concise, actionable, and includes examples of what works vs what doesn't.

Consistent Application: All 13 agent descriptions were updated systematically. The descriptions now focus on WHEN to invoke agents (trigger conditions) rather than detailed capability lists, which aligns well with prompt-engineering.mdc guidelines.

Thorough Testing: The PR explicitly tests prettier behavior and verifies no wrapping occurs - catching the initial 88-char mistake and correcting to 75 chars shows good validation practices.

Code Quality

Description Quality: The new descriptions are clear and concise:

• ✅ "Invoke after frontend code changes for design review"
• ✅ "Invoke to run tests with terse, context-efficient results"
• ✅ "Invoke for production health monitoring and error triage"

Cleanup: Removing unnecessary tools and model frontmatter fields is good hygiene - less configuration drift between agent definitions.

Pattern Consistency: All agent files follow the same frontmatter structure, making the codebase more maintainable.

Concerns & Suggestions

1. Documentation Violates Its Own Principles (Minor)

The CLAUDE.md files contain anti-patterns that prompt-engineering.mdc explicitly discourages:

Lines 26-30 show "What does NOT work" examples with code blocks:

- Multi-line descriptions with block scalars (`>` or `|`)
- Descriptions over 75 characters (causes wrapping: 75 + 13 = 88 line limit)

According to prompt-engineering.mdc:

"Minimal 'bad' examples: LLMs encode patterns from what they see, regardless of labels like 'wrong' or 'don't do this.'"

Recommendation: Replace anti-pattern examples with positive guidance:

-**What does NOT work:**
-
-- Multi-line descriptions with block scalars (`>` or `|`)
-- Descriptions over 75 characters (causes wrapping: 75 + 13 = 88 line limit)
+**Why These Constraints**:
+
+- Single-line format ensures Claude Code's parser reads the entire description
+- 75-character limit prevents prettier from wrapping (13-char prefix + 75 = 88 total)

2. Good vs Bad Examples (Line 33-36)

The checkmark/X pattern is acceptable, but could be strengthened by showing more "good" examples:

 Keep descriptions focused on WHEN to invoke the agent:
 
 - ✅ "Invoke for design review"
+- ✅ "Invoke to run tests with terse results"  
+- ✅ "Invoke when creating git commits"
 - ❌ "Invoke for design review with Playwright testing checking WCAG compliance..."

Per prompt engineering principles: "Flood with correct patterns: Show 5+ examples of the standard approach"

3. Consider Adding Validation (Enhancement)

Since this is a critical constraint, consider adding a pre-commit hook or CI check that validates agent descriptions:

# Check agent descriptions don't exceed 75 chars
find . -name "*.md" -type f -exec grep -H "^description:" {} \; | \
  awk -F': ' '{if (length($2) > 77) print $0}'  # 77 accounts for quotes

This would prevent future regressions.

4. Prettier Formatting (Observation)

The PR includes numerous whitespace/wrapping changes in documentation files (RULE_LOADING.md, architectural-principles.md, etc.). While these are benign prettier formatting updates, they add noise to the diff. Consider running prettier in a separate commit to isolate the functional changes.

Security & Performance

✅ No security concerns: Changes are documentation and frontmatter only.

✅ No performance impact: Shorter descriptions may slightly reduce parsing overhead, but impact is negligible.

Test Coverage

✅ Manual testing performed: Prettier execution validated, character counts verified.

⚠️ No automated tests: Consider adding validation to prevent regressions (see suggestion #3).

Recommendation

Approve with minor suggestions. The PR solves a real problem effectively. The documentation improvements (removing anti-patterns) can be addressed in a follow-up or merged as-is given they're teaching materials rather than executable prompts.

Action Items (Optional Enhancements)

1. Remove anti-pattern examples from CLAUDE.md files per prompt-engineering.mdc
2. Add more positive examples (5+) of good descriptions
3. Consider adding automated validation for 75-char constraint
4. In future, separate prettier formatting from functional changes

---

Great work identifying and systematically fixing this parser limitation! The documentation will help prevent this issue for anyone creating custom agents.

[claude]

Pull Request Review

Summary

This PR addresses a critical compatibility issue with Claude Code's YAML parser by standardizing agent descriptions to single-line format under 75 characters. The solution is pragmatic and well-documented.

✅ Strengths

1. Problem Identification & Solution

• Correctly identifies that Claude Code doesn't parse YAML block scalars (> or |)
• The 75-character limit (88 total with description: prefix) is a practical workaround for prettier wrapping
• Documentation in 4 new CLAUDE.md files provides clear guidance for future contributors

2. Consistency

• All 21 agent descriptions follow the same pattern
• Removed unnecessary frontmatter fields (tools, model) for cleaner config
• Descriptions focus on LLM trigger conditions ("Invoke when...") per prompt-engineering.mdc

3. Documentation Quality
The new .claude/agents/CLAUDE.md file is excellent:

• Clear examples of what works/doesn't work
• Explains the technical constraint (YAML parser + prettier)
• Provides practical guidance for writing concise descriptions

⚠️ Concerns & Suggestions

1. Violation of Project's Own Guidelines

The new CLAUDE.md files contain anti-patterns that contradict rules/prompt-engineering.mdc:

**What does NOT work:**
- Multi-line descriptions with block scalars (> or |)
- Descriptions over 75 characters (causes wrapping: 75 + 13 = 88 line limit)

From prompt-engineering.mdc:

"Minimal 'bad' examples: LLMs encode patterns from what they see, regardless of labels like 'wrong' or 'don't do this.'"

Recommendation: Rewrite to use positive framing only:

## Valid Description Format

Agent descriptions must be:
- Single-line strings (quoted)
- Under 75 characters
- Focused on when to invoke the agent

Example:
description: "Invoke for design review"

2. Testing Gaps

The PR states "Tested with prettier - confirmed no wrapping occurs" but:

• No automated test to prevent regression
• No validation script to check description lengths in CI

Recommendation: Add a simple test:

# .github/workflows/validate-agents.yml
- name: Validate agent descriptions
  run: |
    for file in .claude/agents/*.md plugins/*/agents/*.md; do
      desc=$(grep '^description:' "$file" | sed 's/description: //' | tr -d '"')
      if [ ${#desc} -gt 75 ]; then
        echo "ERROR: $file description too long (${#desc} chars)"
        exit 1
      fi
    done

3. Loss of Information

Some descriptions lost valuable context:

Before:

description: "Invoke for frontend design review. Evaluates visual quality, usability, and
  accessibility using Playwright for live UI testing. Checks responsive behavior, WCAG
  compliance, and design system consistency with Apple/Stripe-level standards."

After:

description: "Invoke after frontend code changes for design review"

The new version doesn't mention Playwright, WCAG, accessibility, or the high design standards - information that helps LLMs decide when to invoke this agent.

Recommendation: Consider slightly longer descriptions that still fit the constraint:

description: "Invoke for visual/accessibility review using Playwright testing"  # 66 chars

4. Documentation Duplication

There are now 4 identical CLAUDE.md files:

• .claude/agents/CLAUDE.md
• plugins/code-review/agents/CLAUDE.md
• plugins/dev-agents/agents/CLAUDE.md
• plugins/web-agents/agents/CLAUDE.md

Recommendation: Consider:

• Single canonical documentation referenced via symlinks, OR
• Brief plugin-specific files that reference the main documentation

🔍 Code Quality

Formatting Changes: The prettier changes across other files (line wrapping in markdown) are appropriate and improve consistency.

No Breaking Changes: The changes are backwards compatible - existing functionality is preserved.

Security: No security concerns identified.

📊 Testing Recommendations

1. Add CI validation for description length
2. Test that Claude Code actually parses these correctly
3. Verify that LLMs can still effectively choose agents with shorter descriptions

🎯 Overall Assessment

Approve with recommendations. This PR solves a real problem and makes the codebase more reliable across installations. The main issues are:

1. Documentation violates the project's own prompt engineering guidelines (fixable)
2. Missing automated validation (nice to have)
3. Some descriptions may be too terse (subjective, test in practice)

The pragmatic solution (single-line under 75 chars) is sound. The execution is clean. Address the anti-pattern documentation and this is ready to merge.

---

Review completed following CLAUDE.md and rules/prompt-engineering.mdc guidelines.

[claude]

Code Review - PR #8

Summary

This PR addresses a critical compatibility issue with Claude Code's YAML parser by standardizing agent descriptions to under 75 characters on a single line. The changes are well-motivated and properly executed.

---

✅ Strengths

1. Problem Identification & Solution

• Correctly identified that Claude Code doesn't parse YAML block scalars (> or |) properly
• Smart catch on the prettier wrapping issue - accounting for the description: prefix (13 chars) to keep total line under 88 characters
• The 75-character limit is pragmatic and well-reasoned

2. Comprehensive Implementation

• Updated all 13 agent descriptions consistently
• Added documentation (CLAUDE.md) in 4 locations to prevent future issues
• Followed the project's own prompt-engineering.mdc guidelines by focusing descriptions on WHEN to invoke (trigger conditions for LLMs)

3. Code Quality

• Descriptions are now LLM-focused rather than human-marketing focused
• Removed unnecessary frontmatter fields (tools, model) for cleaner config
• All changes align with the project's architectural principles

4. Testing & Validation

• Tested with prettier to verify no wrapping
• Verified all descriptions stay under 75 characters

---

🔍 Observations & Suggestions

1. Documentation Alignment
The new .claude/agents/CLAUDE.md provides clear guidance, but consider:

• Adding a lint check or git hook to enforce the 75-char limit on agent descriptions
• This would prevent future contributors from accidentally breaking the format

2. Violation of Prompt Engineering Principles
The new CLAUDE.md documentation includes anti-patterns (lines 28-31):

**What does NOT work:**

- Multi-line descriptions with block scalars (`>` or `|`)
- Descriptions over 75 characters (causes wrapping: 75 + 13 = 88 line limit)

According to your own rules/prompt-engineering.mdc:

"Minimal 'bad' examples: LLMs encode patterns from what they see, regardless of labels like 'wrong' or 'don't do this.' Showing anti-patterns teaches the LLM to reproduce them."

Recommendation: Remove the "What does NOT work" section and rephrase as positive constraints in the "Critical constraints" section above it. The negative examples aren't needed since you've already stated the requirements positively.

3. Emoji Usage in Examples
Line 37-38 in CLAUDE.md:

- ✅ "Invoke for design review"
- ❌ "Invoke for design review with Playwright testing checking WCAG compliance..."

While checkmarks/crosses are common in documentation, they're still emojis. Your CLAUDE.md at project root states "Only use emojis if the user explicitly requests it." Consider using text markers instead: "Good:" and "Avoid:" or similar.

4. Minor: Consistency in Documentation
In .claude/agents/CLAUDE.md, the example shows description: Plain text under 75 chars without quotes, but the guidance says "Always quote descriptions." Consider updating line 24 to:

- description: "Plain text under 75 chars"

---

🔒 Security, Performance & Testing

Security: ✅ No concerns
Performance: ✅ No concerns (actually improves parser reliability)
Test Coverage: ⚠️ No automated tests for the 75-char constraint

Suggestion: Add a simple test script or CI check:

# Example validation script
find .claude/agents -name '*.md' -type f | while read file; do
  desc=$(grep -E '^description:' "$file" | sed 's/^description: *//')
  len=${#desc}
  if [ $len -gt 77 ]; then  # 75 + quotes
    echo "ERROR: $file description too long ($len chars): $desc"
    exit 1
  fi
done

---

🎯 Verdict

Approve with minor suggestions

This is a solid fix for a real compatibility issue. The implementation is thorough and well-documented. The suggested improvements are minor and mostly about aligning with the project's own prompt engineering guidelines.

The core change (75-char single-line descriptions) is correct and necessary. The additions of CLAUDE.md documentation files are helpful for maintainability.

---

📋 Action Items (Optional)

• Consider removing "What does NOT work" section from CLAUDE.md files (violates prompt-engineering.mdc)
• Replace emoji markers (✅❌) with text markers in documentation
• Add automated validation for description length
• Fix example on line 24 of .claude/agents/CLAUDE.md to include quotes

Great work identifying and fixing this parser compatibility issue! 🎉

[claude]

Code Review - PR #8: Fix Agent Descriptions for Claude Code YAML Parser

Summary

This PR successfully addresses a critical compatibility issue with Claude Code's YAML parser by standardizing all agent descriptions to single-line format under 75 characters. The solution is pragmatic, well-documented, and aligns with the project's prompt engineering principles.

✅ Strengths

1. Problem-Solution Alignment
The PR directly solves the stated problem: Claude Code's inability to parse YAML block scalars (> or |) and prettier's tendency to wrap long lines. The 75-character limit (88 chars total with "description: " prefix) is a smart constraint that prevents prettier wrapping across configs.

2. Comprehensive Documentation
The addition of 4 CLAUDE.md files in agent directories provides excellent guidance:

• Clear constraints (single line, <75 chars, use quotes)
• Valid format examples
• Concise writing guidance focused on WHEN to invoke agents
• Practical example showing proper structure

3. Consistent Implementation
All 13 agent descriptions verified to be under 75 characters:

• Shortest: 30 chars ("Invoke for architecture review")
• Longest: 57 chars ("Invoke to run tests with terse, context-efficient results")
• All follow the pattern: "Invoke [when/for] [brief action/context]"

4. Adherence to Project Standards

• Follows prompt-engineering.mdc principles: LLM-focused trigger conditions, clarity over brevity
• Maintains single source of truth architecture (canonical files with symlinks)
• Descriptions focus on trigger conditions for LLM consumption, not marketing copy

5. Clean Refactoring

• Removed unnecessary tools and model frontmatter fields (cleaner config)
• Preserved all agent functionality by moving detailed descriptions into agent body
• No breaking changes to agent behavior

🔍 Observations

1. Character Count Accuracy
Tested: "Invoke after frontend code changes for design review" = 52 chars ✅
All descriptions validated to be under the 75-character threshold.

2. Migration Impact
The PR correctly handles both new installs and updates to existing configurations through the /ai-coding-config update command's architecture detection logic.

3. Consistency Across Plugins
All plugin agent directories now have identical CLAUDE.md documentation:

• .claude/agents/CLAUDE.md
• plugins/code-review/agents/CLAUDE.md
• plugins/dev-agents/agents/CLAUDE.md
• plugins/git-commits/agents/CLAUDE.md

This ensures consistent guidance regardless of entry point.

🎯 Code Quality

Best Practices:

• ✅ Documentation-first approach (CLAUDE.md files guide future agent creation)
• ✅ Consistent formatting and structure across all agent files
• ✅ Clear examples in documentation
• ✅ Preserves backward compatibility (agents work the same, just with shorter descriptions)

Adherence to Project Philosophy:

• ✅ Follows prompt-engineering.mdc: Goal-focused (WHEN to invoke), positive patterns only, LLM-optimized
• ✅ Respects single source of truth architecture
• ✅ Clear over clever: straightforward solution to parser limitations

🔒 Security & Performance

Security: No security concerns. Changes are purely to YAML frontmatter and documentation.

Performance: Improved - shorter descriptions mean less token usage for agent discovery.

📝 Suggestions (Minor)

1. Consider Adding Validation
Could add a pre-commit hook or CI check to validate agent descriptions stay under 75 characters:

# In .github/workflows/ or pre-commit hook
for file in $(find . -name '*.md' -path '*/agents/*'); do
  desc=$(grep '^description:' "$file" | sed 's/^description: *//; s/^"//; s/"$//')
  if [ ${#desc} -gt 75 ]; then
    echo "ERROR: $file description exceeds 75 chars: ${#desc}"
    exit 1
  fi
done

This would prevent future regressions.

2. Documentation Enhancement
The CLAUDE.md files are excellent. Consider adding one note about why 88 chars (75 + "description: ") specifically - it's based on prettier's default line length of 88 for Python/markdown, which some projects use.

3. Example Consistency
In the CLAUDE.md files, the example shows:

description: "Invoke to run tests with terse results"

But the actual test-runner.md has:

description: "Invoke to run tests with terse, context-efficient results"

Minor inconsistency, but both are valid and under the limit.

🧪 Testing

The PR description indicates:

• ✅ Ran prettier on all agent files - no wrapping
• ✅ All descriptions under 88 characters
• ✅ Descriptions follow prompt-engineering.mdc guidelines

Additional verification performed:

• ✅ All 13 agent descriptions validated to be 30-57 characters
• ✅ All follow consistent "Invoke [when/for]..." pattern
• ✅ All properly quoted in YAML frontmatter
• ✅ CLAUDE.md documentation is consistent across 4 locations

📊 Test Coverage

Not applicable - this PR is documentation and configuration changes only. No executable code changed.

✨ Overall Assessment

Quality Score: 9.5/10

This is excellent work. The solution is:

• Pragmatic: Works around Claude Code parser limitations without waiting for upstream fixes
• Well-documented: Future developers will understand the constraint and why it exists
• Comprehensive: Addresses the issue across all 13 agents and 3 plugins
• Standards-compliant: Follows project's prompt engineering principles
• Maintainable: Clear patterns that can be sustained going forward

The only minor improvement would be automated validation to prevent regressions, but that's a nice-to-have, not a blocker.

✅ Recommendation

APPROVE - This PR is ready to merge. It solves the stated problem effectively, includes excellent documentation, and maintains high code quality standards throughout.

Great work on the root cause analysis and systematic fix! 🎉

[claude]

PR Review: Agent YAML Description Fixes

Summary

This is a solid technical fix that addresses a real compatibility issue with Claude Code's YAML parser. The changes are well-documented and the solution is pragmatic.

✅ Strengths

1. Clear Problem Statement: The PR clearly explains the issue - Claude Code doesn't parse YAML block scalars (> or |) and prettier wrapping causes descriptions to break.

2. Pragmatic Solution: The 88-character limit (75 chars + 13 for "description: ") is a sensible constraint that works universally.

3. Excellent Documentation: The new .claude/agents/CLAUDE.md file provides clear guidance for future agent creation, with examples and rationale.

4. Consistency: All 13 agent descriptions were updated uniformly, and the changes follow the project's prompt-engineering rules.

5. LLM-Focused Descriptions: The new descriptions correctly focus on WHEN to invoke agents (trigger conditions) rather than marketing copy, which aligns with prompt-engineering.mdc.

📋 Code Quality Observations

Agent Descriptions

The simplified descriptions are much better for LLM consumption:

Before:

description:
  "Invoke for frontend design review. Evaluates visual quality, usability, and
  accessibility using Playwright for live UI testing. Checks responsive behavior, WCAG
  compliance, and design system consistency with Apple/Stripe-level standards."

After:

description: "Invoke after frontend code changes for design review"

This follows the "clarity over verbosity" principle for LLM-to-LLM communication.

Removed Frontmatter Fields

Good call removing tools and model from some agents - if they're not used by Claude Code, they add noise. However, verify that:

• color: pink is still used (kept in design-reviewer.md:4)
• These fields aren't referenced elsewhere in the codebase

Formatting Changes

Most of the diff is prettier reformatting (line wrapping adjustments). This is expected and fine.

🔍 Potential Concerns

1. Information Loss

While the concise descriptions are LLM-optimal, some useful context was lost:

test-runner old description mentioned:

• "Caller specifies the test runner (bun, pnpm, pytest, etc)"
• "Returns terse summary: pass count, and for failures - test name, error message, file:line"

This detail is now only in the agent body. If the LLM uses descriptions for discovery, it might miss that this agent handles multiple test frameworks.

Recommendation: Consider if the description should hint at capability scope: "Invoke to run tests (bun/pnpm/pytest) with terse results"

2. Verification Needed

The PR mentions testing with prettier, but I don't see test coverage for:

• Claude Code's actual parser with these new descriptions
• Whether color frontmatter field is still functional
• Cross-tool compatibility (Cursor, Windsurf, etc.)

Recommendation: Before merging, verify that Claude Code correctly discovers and invokes these agents.

3. Documentation Accuracy

In .claude/agents/CLAUDE.md:18-19, you state: "Under 75 characters - With description: prefix (13 chars), total line must be under 88"

This is accurate, but the example at line 44 says: "Invoke to run tests with terse results" which is only 39 characters. Consider adding an example that's closer to the 75-char limit to show what's actually possible.

4. Missing CLAUDE.md Files

The PR mentions "Added 4 CLAUDE.md files" but I only see one new file (.claude/agents/CLAUDE.md). Where are the other 3? Were they meant for:

• .claude/commands/CLAUDE.md?
• rules/CLAUDE.md?
• plugins/CLAUDE.md?

🛡️ Security & Performance

No security concerns identified. This is a configuration/documentation change with no runtime impact.

🧪 Test Coverage

Missing Tests:

• No automated verification that descriptions stay under 88 characters
• No CI check to prevent future agents from violating this constraint

Recommendation: Add a simple test script:

#!/bin/bash
# .github/scripts/validate-agent-descriptions.sh
find .claude/agents -name "*.md" -type f | while read file; do
  desc_line=$(grep "^description:" "$file")
  if [ -n "$desc_line" ] && [ ${#desc_line} -gt 88 ]; then
    echo "ERROR: $file description exceeds 88 chars: ${#desc_line}"
    exit 1
  fi
done

Add this to your CI workflow to prevent regressions.

📚 Alignment with Project Standards

✅ Follows rules/prompt-engineering.mdc - LLM-focused, goal-oriented descriptions
✅ Follows rules/git-interaction.mdc - Appropriate commit message format
✅ Single source of truth - Updates canonical .claude/agents/ files
✅ Documentation-first approach - New CLAUDE.md explains the why

🎯 Final Recommendation

Approve with minor suggestions:

1. Add CI validation for description length
2. Clarify where the "4 CLAUDE.md files" are (or update PR description)
3. Consider slightly more descriptive agent descriptions where space allows (e.g., test-runner mentioning framework support)
4. Test with actual Claude Code agent discovery before merging

This PR solves a real problem and does so cleanly. The architectural decision to prioritize universal compatibility over rich descriptions is sound.

---

Review Quality: Thorough
Risk Level: Low
Merge Recommendation: Approve after addressing test validation