Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add vladolaru/claude-code-plugins/plugin install pirategoat-toolsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/vladolaru/claude-code-plugins/analyzing-cc-sessions)<a href="https://agentmods.dev/skills/vladolaru/claude-code-plugins/analyzing-cc-sessions"><img src="https://agentmods.dev/badge/skills/vladolaru/claude-code-plugins/analyzing-cc-sessions/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/vladolaru/claude-code-plugins/analyzing-cc-sessions"><img src="https://agentmods.dev/badge/skills/vladolaru/claude-code-plugins/analyzing-cc-sessions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00071 | $0.04452 |
| Opus 5.5 | $0.00028 | $0.01781 |
| Sonnet 5.5 | $0.00014 | $0.00890 |
| Haiku 4.5 | $0.00007 | $0.00445 |
Grade A, and why
analyzing-cc-sessions scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 427 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill Directory
Resolve SKILL_DIR to the absolute directory containing this SKILL.md, as
shown by the current host, before using any bundled path below.
Before a shell command uses $SKILL_DIR, assign it in that command or replace
it with the resolved path. It is not a host-exported environment variable.
Analyzing Claude Code Raw Sessions
Overview
Claude Code stores every conversation as JSONL transcripts — one JSON object per line. Main sessions track the full human-agent dialogue. Subagent dispatches get their own JSONL files. Large tool outputs are persisted separately as text files.
Core principle: Main session = orchestration log. Subagent files = the real work. Tool-results = the large payloads. Most analysis targets subagent behavior, not the main session.
When to Use
- Analyzing what happened in a CC session (efficiency, behavior, errors)
- Parsing subagent logs for tool call patterns or waste
- Extracting metrics (tokens, duration, tool counts, findings)
- Debugging why a subagent failed or produced poor results
- Building or maintaining session analysis scripts
- Correlating main session dispatches with subagent execution
Before You Start
| Your goal | Start here |
|---|---|
| Understand what happened in a session | Main session JSONL → find Agent tool calls → follow to subagent files |
| Analyze a specific subagent's behavior | Subagent JSONL directly ({session}/subagents/agent-{id}.jsonl) |
| Extract metrics across sessions | Existing analysis scripts (see below) |
| Debug why a subagent failed | Subagent JSONL → last assistant entry → check for errors in preceding tool results |
| Correlate main session ↔ subagent | Main session Agent tool_use → progress entries with agentId → subagent file |
Session Data Locations
Project Directory
Sessions are stored per-project at:
~/.claude/projects/{path-hash}/
The {path-hash} is the absolute project path with / replaced by -, leading - stripped:
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago Changed · -12 lines 1be36aebe6bb
- 2mo ago First seen · 439 lines · 71 tokens per session scan A 97e2e7851876
analyzing-cc-sessions is a skill published in the GitHub repository vladolaru/claude-code-plugins (8 stars, last pushed 5d ago), licensed MIT. It adds 71 tokens to every session and 4,452 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
analyzing-cc-sessions compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| analyzing-cc-sessionsvladolaru/claude-code-plugins | Skill | 8 | 5d ago | MIT | A | 71 | Claude Code |
| imagegenopenai/codex | Skill | 135k | today | Apache-2.0 | A | 113 | Codex |
| playwright-climicrosoft/playwright | Skill | 100k | today | Apache-2.0 | A | 19 | Claude Code |
| browser-automationopenclaw/openclaw | Skill | 394k | today | MIT | A | 36 | Claude Code |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 4d ago | MIT | A | 200 | Claude Code, Codex |
| systematic-debuggingobra/superpowers | Skill | 316k | 7d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 95 | Claude Code |