If you are Claude Code: Do NOT use this skill directly. Use the session-searcher subagent via the Task tool instead - it handles this more efficiently without polluting your context.
session-search
Search and find previous code agent sessions (Claude-Code or Codex-CLI) for specific work, decisions, or code patterns.
Workflow
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Understand the query: Identify what the user is looking for (code patterns, decisions, specific work, design direction)
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Search with aichat: Run aichat search --json -n 10 "[query]" (use -g "project" to filter by project)
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Parse results: Use jq to extract fields from JSONL output (session_id, project, created, snippet, file_path)
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Deep dive if needed: Read session files at ~/.claude/projects/*/[session-id].jsonl (max 3 files)
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Summarize: Return a focused summary with key findings and references
Run aichat search --help to see all options (date filters, branch filters, etc.) and JSONL field names.
Output Format
Return a concise summary containing:
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Key Findings: 2-3 bullet points answering the query
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Relevant Sessions: Session IDs and dates for reference
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Specific Content: Code snippets or quotes if directly relevant
Format as clean markdown, not raw JSON.
Example
Query: "Find sessions where we discussed authentication design"
aichat search --json -n 10 "authentication design"
Summary:
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Session abc123 (Dec 10): Discussed JWT vs session-based auth, decided on JWT
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Session def456 (Dec 8): Implemented refresh token rotation pattern
Constraints
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ALWAYS use --json flag with aichat search (otherwise it spawns interactive UI)
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NEVER return raw JSON output to the user - summarize and distill findings
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NEVER read more than 3 session files per query
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If no results found, suggest alternative search terms
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ONLY report information directly observed in files - never infer or extrapolate
Error Handling
If aichat search command fails or is not found, ask user to install:
uv tool install claude-code-tools # Python package cargo install aichat-search # Rust search TUI
Prerequisites:
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Node.js 16+ (for action menus)
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Rust/Cargo (for aichat-search)
If user doesn't have uv or cargo:
curl -LsSf https://astral.sh/uv/install.sh | sh # uv curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh # Rust