Borrowing it
Nothing to install: this file belongs to PostHog/claude-code-share-plugin. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/PostHog/claude-code-share-plugin/main/CLAUDE.mdgit clone --depth 1 https://github.com/PostHog/claude-code-share-pluginWrote 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/instructions/posthog/claude-code-share-plugin/claude-md)<a href="https://agentmods.dev/instructions/posthog/claude-code-share-plugin/claude-md"><img src="https://agentmods.dev/badge/instructions/posthog/claude-code-share-plugin/claude-md/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/instructions/posthog/claude-code-share-plugin/claude-md"><img src="https://agentmods.dev/badge/instructions/posthog/claude-code-share-plugin/claude-md.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 | $0.01123 | $0.01123 |
| Opus 5.5 | $0.00449 | $0.00449 |
| Sonnet 5.5 | $0.00225 | $0.00225 |
| Haiku 4.5 | $0.00112 | $0.00112 |
Grade B, and why
claude-code-share-plugin CLAUDE.md scanned grade B with 1 finding 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.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
cat > ~/.claude/share-plugin-config.json <<EOF How it starts
The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
This is a Claude Code plugin that converts JSONL session logs into readable markdown and publishes them to GitHub repositories. The plugin provides a /share slash command that executes a Python script to handle the conversion and upload process.
Key Architecture
Plugin Structure
The plugin follows the standard Claude Code plugin architecture:
.claude-plugin/plugin.json: Plugin metadata (name, version, author)commands/share.md: Slash command definition that invokes the Python scriptscripts/share_session.py: Core Python script that handles all functionalityinstall.sh: Automated installer that configures the plugin and saves settings
Core Components
Session Log Discovery (find_latest_session_log() in scripts/share_session.py:31-56):
- Converts current working directory to Claude project directory format (e.g.,
/Users/foo/project→-Users-foo-project) - Searches
~/.claude/projects/{project_dir_name}/*.jsonlfor session files - Falls back to searching all projects if current project directory not found
- Returns most recently modified JSONL file
Configuration System (get_config() in scripts/share_session.py:58-86):
- Priority:
~/.claude/share-plugin-config.json→CLAUDE_SHARE_REPOenv var - Auto-detects GitHub username via
gh api user --jq .login - Returns config dict with: repo, username, branch (defaults to "main"), base_path (defaults to "sessions/claude")
JSONL to Markdown Conversion (convert_jsonl_to_markdown() in scripts/share_session.py:108-213):
- Parses JSONL entries where each line has
{message: {role, content}} - Filters out
/sharecommand artifacts to avoid recursion in shared sessions - Formats user messages as
## Usersections - Formats assistant messages as
## Claudesections - Collapses tool calls in
<details>tags with tool name and JSON input - Skip logic prevents share-related commands/responses from appearing in output
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 First seen · 128 lines · 1,123 tokens per session scan B 42b492bc5453
claude-code-share-plugin CLAUDE.md is an instructions file published in the GitHub repository PostHog/claude-code-share-plugin (5 stars, last pushed 3mo ago), licensed MIT. It adds 1,123 tokens to every session, about $0.0045 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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