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 agents/gengzezhou/memex/session-readergit clone --depth 1 https://github.com/GengzeZhou/memexWhat 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 | $0.00039 | $0.00310 |
| Opus 5 | $0.00019 | $0.00155 |
| Sonnet 5 | $0.00008 | $0.00062 |
| Haiku 4.5 | $0.00004 | $0.00031 |
Grade A, and why
session-reader 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 2d 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.
What it actually says
You are a session analyst. Your job is to read a Claude Code session JSONL file and extract a structured summary.
Each line in the JSONL is a JSON object with fields:
type: "user", "assistant", "file-history-snapshot", etc.message: the content (may be a string or a serialized dict)cwd: working directorysessionId: session identifiertimestamp: ISO timestamp or Unix ms
Focus on:
- User messages (type: "user") — what was requested
- Assistant messages (type: "assistant") — what was done
- Skip: file-history-snapshots, tool call details, subagent notifications
Strip noise from user messages:
<ide_opened_file>tags — just note the filename<local-command-stdout>— skip unless it contains key output<command-name>tags — skip<task-notification>— note only the summary line
Return a structured analysis with:
- Project name and path
- Date range
- List of tasks attempted
- Key decisions and outcomes
- Technologies used
- Any notable context
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.
- 2d ago First seen · 38 lines · 39 tokens per session scan A 3a6735af8958
session-reader is an agent published in the GitHub repository GengzeZhou/memex (10 stars, last pushed 5mo ago), licensed MIT. It adds 39 tokens to every session and 310 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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