Agent skill · Content & Marketing

observability-analyze-session-logs

Analyzes Claude Code session transcripts (JSONL files) to reveal context window content, token usage patterns, and decision-making processes using view_session_context.py tool. Use when debugging Claude behavior, investigating token patterns, tracking agent delegation, or analyzing context exhaustion. Triggers on "why did Claude do X", "analyze session", "check session logs", "context window exhaustion", or "track agent delegation".

majiayu000github.com/majiayu000GitHub ↗
claude-codecan modify filesMIT
Install
npx skills add majiayu000/claude-skill-registry --skill observability-analyze-session-logs-dawiddutoit-custom-claude-2 --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 2
SKILL.md size: 12 KB
Bundled scripts: none
Allowed tools: -Bash-Read-Grep-Glob
Path: skills/analysis/observability-analyze-session-logs-dawiddutoit-custom-claude-2/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 534
Language: HTML

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

From the SKILL.md

# Analyze Session Logs > **IMPORTANT DISTINCTION**: This skill analyzes **Claude Code session transcripts** (what Claude saw and thought), NOT application/production logs (what code executed). For application logs, use the **analyze-logs** skill instead. ## Quick Start **Most common usage (list all messages):** ```bash python3 .claude/tools/utils/view_session_context.py <session-file.jsonl> --list ``` **View context at specific point (by message index):** ```bash python3 .claude/tools/utils/view_session_context.py <session-file.jsonl> --message-index 10 ``` **View context at specific message (by UUID from logs/errors):** ```bash python3 .claude/tools/utils/view_session_context.py <session-file.jsonl> --uuid "3c8467d6-..." ``` ## When to Use This Skill Invoke this skill when users mention: - "why did Claude do X?" - "what was in the context window?" - "analyze session" / "check session logs" - "debug Claude behavior" - "token usage investigation" - "context window exhaustion" - "track agent delegation" - Any mention of `.jsonl` session files **Use cases:** 1. **Debugging decisions** - "Why did Claude choose approach X?" → View context at decision point 2. **Token analysis** - "Where

What's inside
Steps it walks through
  1. Quick Start
  2. When to Use This Skill
  3. What This Skill Does
  4. Session File Locations
  5. Instructions
  6. Analysis Workflow
  7. Step 1: Locate Session File
  8. Step 2: Choose Analysis Mode
  9. Step 3: Execute Analysis
  10. Step 4: Interpret Results
  11. Step 5: Report Findings
  12. Best Practices
  13. Common Scenarios
  14. "Why did Claude do X?"
Ships with 1 file
  • metadata.json
Commands it runs
python3 .claude/tools/utils/view_session_context.py <session-file.jsonl> --list
python3 .claude/tools/utils/view_session_context.py <session-file.jsonl> --message-index 10
python3 .claude/tools/utils/view_session_context.py <session-file.jsonl> --uuid "3c8467d6-..."
ls -lt ~/.claude/projects/-Users-$(whoami)-*/*.jsonl | head -5
Find most recent session file
Or search by UUID from error messages
grep -r "uuid" ~/.claude/projects/*/
python3 .claude/tools/utils/view_session_context.py <session.jsonl> --list
python3 .claude/tools/utils/view_session_context.py <session.jsonl> --message-index 10
python3 .claude/tools/utils/view_session_context.py <session.jsonl> --uuid "3c8467d6-..."
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About this skill
What does the observability-analyze-session-logs skill do?

Analyzes Claude Code session transcripts (JSONL files) to reveal context window content, token usage patterns, and decision-making processes using view_session_context.py tool. Use when debugging Claude behavior, investigating token patterns, tracking agent delegation, or analyzing context exhaustion. Triggers on "why did Claude do X", "analyze session", "check session logs", "context window exhaustion", or "track agent delegation".

How do I install it?

Run `npx skills add majiayu000/claude-skill-registry --skill observability-analyze-session-logs-dawiddutoit-custom-claude-2 --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

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