Agent Skills
› NeverSight/learn-skills.dev
› extract-transcripts
extract-transcripts
GitHub从 Claude Code 和 Codex CLI 的 JSONL 会话文件中提取可读的 Markdown 转录本。支持单文件、目录批量处理，可包含工具调用和思考块，提供摘要模式，并基于 DuckDB 建立索引以支持跨会话搜索和历史查询。
Trigger Scenarios
用户需要从 Claude Code 或 Codex CLI 的 JSONL 日志中提取对话内容
用户希望将杂乱的会话数据转换为易读的 Markdown 格式
用户需要对多个历史会话进行索引、搜索或快速浏览摘要
Install
npx skills add NeverSight/learn-skills.dev --skill extract-transcripts -g -y
SKILL.md
Frontmatter
{
"name": "extract-transcripts",
"description": "Extract readable transcripts from Claude Code and Codex CLI session JSONL files"
}
Extract Transcripts
Extracts readable markdown transcripts from Claude Code and Codex CLI session JSONL files.
Scripts
Claude Code Sessions
# Extract a single session
uv run ~/.claude/skills/extract-transcripts/extract_transcript.py <session.jsonl>
# With tool calls and thinking blocks
uv run ~/.claude/skills/extract-transcripts/extract_transcript.py <session.jsonl> --include-tools --include-thinking
# Extract all sessions from a directory
uv run ~/.claude/skills/extract-transcripts/extract_transcript.py <directory> --all
# Output to file
uv run ~/.claude/skills/extract-transcripts/extract_transcript.py <session.jsonl> -o output.md
# Summary only (quick overview)
uv run ~/.claude/skills/extract-transcripts/extract_transcript.py <session.jsonl> --summary
# Skip empty/warmup-only sessions
uv run ~/.claude/skills/extract-transcripts/extract_transcript.py <directory> --all --skip-empty
Options:
--include-tools: Include tool calls and results--include-thinking: Include Claude's thinking blocks--all: Process all .jsonl files in directory-o, --output: Output file path (default: stdout)--summary: Only output brief summary--skip-empty: Skip empty and warmup-only sessions--min-messages N: Minimum messages for --skip-empty (default: 2)
Codex CLI Sessions
# Extract a Codex session
uv run ~/.claude/skills/extract-transcripts/extract_codex_transcript.py <session.jsonl>
# Extract from Codex history file
uv run ~/.claude/skills/extract-transcripts/extract_codex_transcript.py ~/.codex/history.jsonl --history
Session File Locations
Claude Code
- Sessions:
~/.claude/projects/<project-path>/<session-id>.jsonl
Codex CLI
- Sessions:
~/.codex/sessions/<session_id>/rollout.jsonl - History:
~/.codex/history.jsonl
DuckDB-Based Transcript Index
For querying across many sessions, use the DuckDB-based indexer:
# Index all sessions (incremental - only new/changed files)
uv run ~/.claude/skills/extract-transcripts/transcript_index.py index
# Force full reindex
uv run ~/.claude/skills/extract-transcripts/transcript_index.py index --full
# Limit number of files to process
uv run ~/.claude/skills/extract-transcripts/transcript_index.py index --limit 10
# List recent sessions
uv run ~/.claude/skills/extract-transcripts/transcript_index.py recent
uv run ~/.claude/skills/extract-transcripts/transcript_index.py recent --limit 20
uv run ~/.claude/skills/extract-transcripts/transcript_index.py recent --project myapp
uv run ~/.claude/skills/extract-transcripts/transcript_index.py recent --since 7d
# Search across sessions
uv run ~/.claude/skills/extract-transcripts/transcript_index.py search "error handling"
uv run ~/.claude/skills/extract-transcripts/transcript_index.py search "query" --cwd ~/myproject
# Show a session transcript
uv run ~/.claude/skills/extract-transcripts/transcript_index.py show <file_path>
uv run ~/.claude/skills/extract-transcripts/transcript_index.py show <file_path> --summary
Requirements: uv (dependencies auto-installed via inline script metadata)
Database location: ~/.claude/transcript-index/sessions.duckdb
Output Format
Transcripts are formatted as markdown with:
- Session metadata (date, duration, model, working directory, git branch)
- User messages prefixed with
## User - Assistant responses prefixed with
## Assistant - Tool calls in code blocks (if --include-tools)
- Thinking in blockquotes (if --include-thinking)
- Tool usage summary for Codex sessions
Version History
- e0220ca Current 2026-07-05 20:31
