learn

name	learn
description	Update fx-cc plugin skills based on conversation learnings. Use when the user says "use /learn to...", "learn to...", "remember to...", "don't do X again", or when a skill misbehaved and needs correction. This skill modifies plugin source files but does NOT commit changes - they require manual review before committing. Use when this capability is needed.
metadata	{"author":"fx"}

Learn

This skill updates fx-cc marketplace plugins based on learnings from the current conversation. It modifies skill definitions to prevent future mistakes or improve behavior.

Prerequisites

Before making any changes, verify the fx-cc marketplace is accessible:

cd ~/.claude/plugins/marketplaces/fx-cc && git remote -v && git status

Verify the remote is accessible and the working directory is clean. If not accessible, inform the user and abort.

Workflow

Step 1: Analyze the Learning Request

Examine the current conversation to understand:

1. What went wrong - Identify the specific behavior that needs correction
2. Root cause - Determine which skill caused the issue
3. Desired behavior - Understand what should happen instead

Common scenarios:

• Skill not loaded when it should have been → Update skill description to be clearer about trigger conditions
• Skill produced incorrect behavior → Add explicit prohibition to skill instructions
• Skill missed a step → Add the step to the skill's workflow
• Instruction was ambiguous → Clarify the wording

Step 2: Locate Relevant Files

Search the fx-cc marketplace for relevant files:

# Find all plugin definitions
find ~/.claude/plugins/marketplaces/fx-cc/plugins -name "*.md" -type f

# Search for specific content
grep -r "keyword" ~/.claude/plugins/marketplaces/fx-cc/plugins/

Key locations:

• Skills: plugins/<plugin>/skills/<skill>/SKILL.md

Step 3: Make Targeted Modifications

Edit the relevant files to address the learning. Follow these principles:

1. Be specific - Add concrete instructions, not vague guidance
2. Use imperative form - Write "Do X" or "Never do Y", not "You should..."
3. Add context - Explain why the rule exists if non-obvious
4. Preserve structure - Maintain existing formatting and organization

For prohibitions, use clear language:

**CRITICAL:** Never do X because Y.

For required actions:

**IMPORTANT:** Always do X before Y.

Step 4: Sync to Plugin Cache

CRITICAL: Claude Code caches plugins separately from the marketplace source. After modifying files in the marketplace, sync changes to the cache so they take effect immediately.

Cache mapping:

• Source: ~/.claude/plugins/marketplaces/fx-cc/plugins/<plugin>/
• Cache: ~/.claude/plugins/cache/fx-cc/<plugin>/<version>/

To sync a modified plugin:

# Get the plugin version from its manifest
PLUGIN=fx-dev  # or fx-meta, fx-research, etc.
VERSION=$(cat ~/.claude/plugins/marketplaces/fx-cc/plugins/$PLUGIN/.claude-plugin/plugin.json | grep '"version"' | sed 's/.*: *"\([^"]*\)".*/\1/')

# Sync marketplace source to cache
rsync -av --delete \
  ~/.claude/plugins/marketplaces/fx-cc/plugins/$PLUGIN/ \
  ~/.claude/plugins/cache/fx-cc/$PLUGIN/$VERSION/

Sync every plugin that was modified. This ensures Claude loads the updated definitions immediately without requiring a restart.

Step 5: Verify Changes

After editing and syncing, show the diff to the user:

cd ~/.claude/plugins/marketplaces/fx-cc && git diff

Step 6: Leave for Manual Review

CRITICAL: Do NOT commit the changes. Inform the user:

Changes have been made to the following files:

• path/to/file1.md
• path/to/file2.md

Review the changes with git diff in ~/.claude/plugins/marketplaces/fx-cc. Commit manually when satisfied.

Examples

Example 1: Skill Skipped a Step

User says: "use /learn to update our sdlc skills - they should update PROJECT.md when creating PRs"

1. Locate plugins/fx-dev/skills/pr-preparer/SKILL.md
2. Add instruction to check PROJECT.md and update completed tasks
3. Sync fx-dev plugin to cache
4. Show diff, leave uncommitted

Example 2: Skill Not Triggered

User says: "the github skill didn't load when I ran gh commands"

1. Locate plugins/fx-dev/skills/github/SKILL.md
2. Update description to include more trigger phrases (e.g., "gh CLI", "GitHub API")
3. Sync fx-dev plugin to cache
4. Show diff, leave uncommitted

Example 3: Explicit Prohibition

User says: "/learn to never leave comments on PRs"

1. Locate relevant skills (pr-preparer, pr-reviewer, etc.)
2. Add explicit prohibition with rationale
3. Sync all modified plugins to cache
4. Show diff, leave uncommitted

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