ZipperBagCoffee Model Routing
| Tier | Model | When |
|---|---|---|
| T1 | Opus | Reviewing generated concept quality, judgment on whether content matches project intent |
| T2 | Sonnet | Scanning package.json/README.md, writing project.md, verifying file existence and length |
| T3 | Haiku | Not used in this skill |
Project Root Resolution
IMPORTANT: Get the project root from your context's "Project Root Anchor" section.
Look for: Your ACTUAL project root is: <path>
Use this value as {PROJECT_DIR} in all commands below.
If not available in context, use your current working directory.
Setup Project
Generate .crabshell/project.md — a 2-3 sentence project concept injected every prompt by inject-rules.js for drift prevention.
Format Constraint
- Max 10 lines, 500 characters total (inject-rules.js truncation)
- Content: What is this project? What does it do? What tech stack?
- Example: "Crabshell is a Claude Code plugin that auto-saves session context. Provides hierarchical memory rotation, rules injection, and integrated search. Built with Node.js, runs as hooks."
Steps
Step 1: Check existing project.md
Read {PROJECT_DIR}/.crabshell/project.md. If exists, show current content and ask: "Update or keep?"
Step 2: Scan project sources
Read available sources in order of priority:
package.jsonor.claude-plugin/plugin.json— name + description fieldsREADME.md— first non-empty paragraph after title- Git remote URL — extract repo name
- Top-level directory names — detect framework/stack
Step 3: Generate project concept
From extracted info, compose 2-3 sentences (under 500 chars total):
- Line 1: "{name} is a {type} that {purpose}."
- Line 2: "{key features or tech stack}."
- Line 3 (optional): "{additional context}."
Step 4: Present to user
Show the generated text. User approves, edits, or rejects.
Step 5: Write project.md
Save approved content to {PROJECT_DIR}/.crabshell/project.md.
Use the Write tool to create {PROJECT_DIR}/.crabshell/project.md with the approved content.
If the directory doesn't exist, create it first:
"{NODE_PATH}" -e "require('fs').mkdirSync('{PROJECT_DIR}/.crabshell/memory',{recursive:true})"
Step 6: Verify
Read back the file and confirm inject-rules.js would pick it up:
- File exists at correct path
- Content is 10 lines or fewer
- Total length under 500 chars