Atelier Pipeline -- Uninstall

This skill removes the Atelier Pipeline multi-agent orchestration system from the user's project. It is careful, transparent, and non-destructive by default.

Uninstall Procedure

Step 1: Inventory Installed Files

Before removing anything, scan the project to build a complete inventory of what was installed by the pipeline.

Core pipeline files (installed by pipeline-setup):

.claude/rules/
  default-persona.md
  agent-system.md
  pipeline-orchestration.md
  pipeline-models.md
  branch-lifecycle.md

.claude/agents/  (core agents only)
  sarah.md
  colby.md
  robert.md
  sable.md
  investigator.md
  distillator.md
  ellis.md
  agatha.md
  sentinel.md          (if Sentinel was enabled)

.claude/commands/
  pm.md
  ux.md
  architect.md
  pipeline.md
  devops.md
  docs.md

.claude/references/
  dor-dod.md
  invocation-templates.md
  pipeline-operations.md
  agent-preamble.md
  branch-mr-mode.md
  xml-prompt-schema.md

.claude/hooks/
  enforce-paths.sh
  enforce-sequencing.sh
  enforce-pipeline-activation.sh
  enforce-git.sh
  session-hydrate.sh
  pre-compact.sh
  enforcement-config.json

.claude/pipeline-config.json
.claude/.atelier-version

docs/pipeline/
  pipeline-state.md
  context-brief.md
  error-patterns.md
  investigation-ledger.md

Detect each file's existence using Glob and build two lists:

1. Core pipeline files -- files matching the manifest above that exist on disk
2. User-created custom agents -- any .md files in .claude/agents/ whose YAML frontmatter name does NOT match a core agent (sarah, colby, ellis, agatha, robert, sable, investigator, distillator, sentinel)

Step 2: Present Removal Plan

Display the full removal plan to the user BEFORE touching any files. Organize by category:

Pipeline Uninstall Plan
=======================

WILL REMOVE (core pipeline files):
  .claude/rules/           -- [N] files (Eva persona, orchestration rules, models, branch lifecycle)
  .claude/agents/          -- [N] core agent files (sarah, colby, ...)
  .claude/commands/        -- [N] files (slash command definitions)
  .claude/references/      -- [N] files (quality framework, templates, operations)
  .claude/hooks/           -- [N] files (enforcement scripts and config)
  .claude/pipeline-config.json
  .claude/.atelier-version
  docs/pipeline/           -- [N] files (pipeline state, context, error patterns)

WILL MODIFY:
  .claude/settings.json    -- Remove hook registrations (PreToolUse, SubagentStop, PreCompact)
  CLAUDE.md                -- Remove "Pipeline System (Atelier Pipeline)" section

WILL PRESERVE (not removed):
  [List any user-created custom agents found in .claude/agents/]
  [If no custom agents: "No user content to preserve."]

Total files to remove: [count]
Total files to modify: [count]

Step 3: Handle Preservable Content

Custom agents: If user-created custom agents are found in .claude/agents/, inform the user:

Found [N] custom agent(s) that were not installed by the pipeline:

• [agent-name] -- [description from frontmatter]

These will NOT be removed. They'll remain in .claude/agents/ but won't function without the pipeline's orchestration rules. You can delete them manually if you no longer need them.

Step 4: Get User Confirmation

Ask for explicit confirmation before proceeding:

This will remove [N] files and modify [M] files. This cannot be undone (though git can restore them if they were committed).

Proceed with uninstall? (yes/no)

Do not proceed without explicit "yes" from the user.

Step 5: Remove Files

Execute the removal in this order:

1. Remove hook registrations from .claude/settings.json:

   • Read the current settings file
   • Remove the PreToolUse hook entries that reference enforce-paths.sh, enforce-sequencing.sh, enforce-pipeline-activation.sh, and enforce-git.sh
   • Remove the SessionStart hook entry that references session-hydrate.sh
   • Remove the PreCompact hook entry that references pre-compact.sh
   • If the hooks object is now empty, remove the hooks key entirely
   • If settings.json is now empty ({}), delete the file
   • Preserve any non-pipeline hook entries and other settings

2. Remove the pipeline section from CLAUDE.md:

   • Find and remove the section starting with ## Pipeline System (Atelier Pipeline) through the end of that section (up to the next ## heading or end of file)
   • If CLAUDE.md is now empty or contains only whitespace, delete the file
   • Preserve all other content in CLAUDE.md

3. Remove core pipeline files (skip any that don't exist):

   • Delete all files in .claude/hooks/ that match the manifest
   • Delete all core agent files in .claude/agents/ (preserve custom agents)
   • Delete all files in .claude/commands/ that match the manifest
   • Delete all files in .claude/references/ that match the manifest
   • Delete all files in .claude/rules/ that match the manifest
   • Delete .claude/pipeline-config.json
   • Delete .claude/.atelier-version
   • Delete all files in docs/pipeline/ that match the manifest

4. Clean up empty directories:

   • If .claude/hooks/ is now empty, remove the directory
   • If .claude/agents/ is now empty (no custom agents), remove the directory
   • If .claude/commands/ is now empty, remove the directory
   • If .claude/references/ is now empty, remove the directory
   • If .claude/rules/ is now empty, remove the directory
   • If docs/pipeline/ is now empty, remove the directory
   • If docs/ is now empty, remove the directory
   • Do NOT remove .claude/ itself -- it may contain settings.json or other non-pipeline files

Step 6: Print Summary

After removal, print a summary:

Atelier Pipeline uninstalled.

Removed: [N] files across [M] directories
Modified: .claude/settings.json (hooks removed), CLAUDE.md (pipeline section removed)
Preserved: [list of preserved items, or "nothing"]

The atelier-pipeline plugin is still registered with Claude Code.
To fully remove it: claude plugin remove atelier-pipeline

If you change your mind, reinstall with: /pipeline-setup

Important Notes

• Never remove files without showing the plan first. The inventory step is mandatory.
• Never remove user-created custom agents. Only remove files that match the core pipeline manifest.
• Preserve non-pipeline content in settings.json and CLAUDE.md. Only remove pipeline-specific entries.
• Handle missing files gracefully. If a file from the manifest doesn't exist, skip it silently -- don't error.
• This skill does NOT remove the plugin itself. It removes the inst