Analyze

ultrathink: Gather deep context and analyze the following request with extreme thoroughness. Do NOT begin planning until you have built a comprehensive mental model of the relevant code.

Request

$ARGUMENTS

Context

• Current directory: !pwd
• Git branch: !git branch --show-current 2>/dev/null || echo "not a git repo"
• Recent commits: !git log --oneline -10 2>/dev/null || echo "no commits"

Phase 1: Broad Context Gathering (MANDATORY — do this FIRST)

Before forming ANY opinions or plans, gather context aggressively:

1. Map the project structure — use Glob to understand the directory layout, then read project config files (CLAUDE.md, AGENTS.md, package.json, Cargo.toml, Makefile, tsconfig.json, or equivalent). This tells you the conventions.
2. Launch Explore agents (set to "very thorough") in parallel to map all code areas relevant to the request. Cast a wide net.
3. Read ALL files that might be relevant — err on the side of reading MORE, not less. Read files in parallel batches. If you're unsure whether a file matters, read it.
4. Read tests to understand expected behavior, test patterns, and edge cases already covered.
5. Check git history (git log --oneline --all -- <relevant paths>) if it helps understand design decisions or recent changes.

You should have read 10+ files before moving to Phase 2. If you haven't, you haven't read enough. Spend real effort here — this is where the quality comes from.

Phase 2: Resolve Ambiguity

If the request is ambiguous or there are meaningful choices that affect the approach (e.g., which library, what scope, performance vs simplicity), use AskUserQuestion to resolve them NOW — before committing to any direction. Don't guess at intent.

Phase 3: Deep Analysis

Now think deeply about what you've learned:

1. Consider multiple approaches — don't settle on the first idea
2. Identify tradeoffs — performance, maintainability, complexity, risk
3. Think about edge cases and failure modes
4. Consider how changes fit with existing patterns and conventions
5. Anticipate problems that might arise during implementation

Phase 4: Output

Decide whether this request is an implementation task or pure analysis.

If implementation: Use EnterPlanMode. Do any remaining exploration there, write the plan to the plan file with specific file:line references, then use ExitPlanMode for approval. Once approved, proceed with implementation directly.

If pure analysis: Output findings directly. Include file:line references. No plan mode needed.