Agent skill
deep-analysis
Reusable deep exploration and synthesis workflow. Use when asked for "deep analysis", "deep understanding", "analyze codebase", "explore and analyze", or "investigate codebase".
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/deep-analysis
SKILL.md
Deep Analysis Workflow
Execute a structured exploration + synthesis workflow using parallel code-explorer agents and a codebase-synthesizer agent. This skill can be invoked standalone or loaded by other skills as a reusable building block.
Phase 1: Exploration
Goal: Thoroughly explore the codebase to gather raw findings.
-
Determine analysis context:
- If
$ARGUMENTSis provided, use it as the analysis context (feature area, question, or general exploration goal) - If no arguments and this skill was loaded by another skill, use the calling skill's context
- If no arguments and standalone invocation, set context to "general codebase understanding"
- Set
PATH = current working directory - Inform the user: "Exploring codebase at:
PATH" with the analysis context
- If
-
Load skills for this phase:
- Read
${CLAUDE_PLUGIN_ROOT}/skills/project-conventions/SKILL.mdand apply its guidance - Read
${CLAUDE_PLUGIN_ROOT}/skills/language-patterns/SKILL.mdand apply its guidance
- Read
-
Determine focus areas:
- For feature-focused analysis, use 3 agents:
Agent 1: Explore entry points and user-facing code related to the context Agent 2: Explore data models, schemas, and storage related to the context Agent 3: Explore utilities, helpers, and shared infrastructure - For general codebase understanding, 2 agents may suffice:
Agent 1: Explore application structure, entry points, and core logic Agent 2: Explore configuration, infrastructure, and shared utilities
- For feature-focused analysis, use 3 agents:
-
Launch code-explorer agents:
Launch agents in parallel using the Task tool with
subagent_type: "claude-alchemy-tools:code-explorer":Path to analyze: [PATH] Analysis context: [context from step 1] Focus area: [specific focus for this agent] Find and analyze: - Relevant files and their purposes - Key functions/classes and their roles - Existing patterns and conventions - Integration points and dependencies Return a structured report of your findings. -
Handle agent failures:
- If an agent fails, note which focus area was missed
- Continue with successful results — partial findings are still valuable
- If all agents fail, inform the user and offer to retry or explore manually
Phase 2: Synthesis
Goal: Merge exploration findings into a unified analysis.
-
Launch codebase-synthesizer agent:
Use the Task tool with
subagent_type: "claude-alchemy-tools:codebase-synthesizer"andmodel: "opus":Analysis context: [context from Phase 1] Codebase path: [PATH] Exploration findings from [N] agents: --- Agent 1: [Focus Area] --- [Full report from agent 1] --- Agent 2: [Focus Area] --- [Full report from agent 2] --- Agent 3: [Focus Area] (if applicable) --- [Full report from agent 3] Synthesize these findings into a unified analysis. Merge duplicates, read critical files in depth, map relationships between components, identify patterns, and assess challenges. -
Review synthesis:
- Verify the synthesizer covered all focus areas
- If critical gaps exist, use Glob/Grep to fill them directly
Completion
- Standalone invocation: Present the synthesized analysis to the user. The results remain in conversation memory for follow-up questions.
- Loaded by another skill: The synthesis is complete. Control returns to the calling workflow — do not present a standalone summary.
Error Handling
If any phase fails:
- Explain what went wrong
- Ask the user how to proceed:
- Retry the phase
- Continue with partial results
- Abort the analysis
Agent Coordination
When launching parallel agents:
- Give each agent a distinct focus area to minimize overlap
- Wait for all agents to complete before proceeding to synthesis
- Handle agent failures gracefully — continue with partial results
When calling Task tool for agents:
- Use
model: "opus"for codebase-synthesizer agent - Use default model (sonnet) for code-explorer agents
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