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/zby/commonplace/write-agent-memory-system-reviewnpx skills add zby/commonplace --skill write-agent-memory-system-reviewgit clone --depth 1 https://github.com/zby/commonplaceWrote 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/zby/commonplace/write-agent-memory-system-review)<a href="https://agentmods.dev/skills/zby/commonplace/write-agent-memory-system-review"><img src="https://agentmods.dev/badge/skills/zby/commonplace/write-agent-memory-system-review.svg" alt="Measured on agentmods" 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 | $0.00041 | $0.01116 |
| Opus 5 | $0.00020 | $0.00558 |
| Sonnet 5 | $0.00008 | $0.00223 |
| Haiku 4.5 | $0.00004 | $0.00112 |
Grade A, and why
write-agent-memory-system-review 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 today.
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.
The source is not reproduced here
Licensed CC-BY-4.0
The repository is licensed CC-BY-4.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- today Changed · -47 lines 9492af3912d4
- yesterday Changed · +10 lines c1803132ddeb
- 5d ago First seen · 147 lines · 41 tokens per session scan A 871b747fa932
write-agent-memory-system-review is a skill published in the GitHub repository zby/commonplace (88 stars, last pushed today), licensed CC-BY-4.0. It adds 41 tokens to every session and 1,116 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 2026-08-30.
Other skills, from other repositories
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deeprefine
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kb-lint
Health check for the PARA Knowledge Base. Detects orphan documents, broken links, index drift, tag issues, and stale content. Run periodically or as part of weekly review.
kb-query
Query the PARA Knowledge Base to find information, synthesize answers from vault documents, inspect recent activity when needed, and record compact query telemetry when configured. Use for any question about Obsidian vault content, projects, references, logs, links, or cross-document analysis.
kb-init
Initialize or adopt a portable PARA Knowledge Base in an Obsidian vault. Detects numbered, standard, or configured roots; creates indexes and a log when requested; and installs shared rules/config for Claude Code, Codex, and local consumers.