Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/idisposable/claude-transcript-plugin/save-transcriptnpx skills add IDisposable/claude-transcript-plugin --skill save-transcriptgit clone --depth 1 https://github.com/IDisposable/claude-transcript-pluginWhat 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 | $0.00030 | $0.00201 |
| Opus 5 | $0.00015 | $0.00101 |
| Sonnet 5 | $0.00006 | $0.00040 |
| Haiku 4.5 | $0.00003 | $0.00020 |
Grade A, and why
save-transcript 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 yesterday.
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.
What it actually says
Save Transcript
Save the current session's conversation to a readable Markdown file.
Steps
-
Find the current session's JSONL transcript file. It is located at the path shown in the session metadata, typically under
~/.claude/projects/. -
Run the transcript converter:
echo '{"session_id": "<session-id>", "transcript_path": "<path-to-jsonl>", "cwd": "<current-working-dir>"}' | ${CLAUDE_PLUGIN_ROOT}/scripts/run -
Report the output file path to the user.
Notes
- Transcripts are saved to
~/.claude/transcripts/by default. - Override with
TRANSCRIPT_OUTPUT_DIRenvironment variable. - The hook also runs automatically before every context compaction.
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.
- yesterday First seen · 26 lines · 30 tokens per session scan A 1e9da88b07ba
save-transcript is a skill published in the GitHub repository IDisposable/claude-transcript-plugin (2 stars, last pushed 3mo ago), licensed MIT. It adds 30 tokens to every session and 201 once invoked, about $0.0002 per session on Opus 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 2026-08-31.
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