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/vergil-project/vergil-claude-plugin/memory-initnpx skills add vergil-project/vergil-claude-plugin --skill memory-initgit clone --depth 1 https://github.com/vergil-project/vergil-claude-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/skills/vergil-project/vergil-claude-plugin/memory-init)<a href="https://agentmods.dev/skills/vergil-project/vergil-claude-plugin/memory-init"><img src="https://agentmods.dev/badge/skills/vergil-project/vergil-claude-plugin/memory-init.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 | $0.00064 | $0.00576 |
| Opus 5 | $0.00032 | $0.00288 |
| Sonnet 5 | $0.00013 | $0.00115 |
| Haiku 4.5 | $0.00006 | $0.00058 |
Grade A, and why
memory-init 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 5d 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 — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Memory Init
Set up the project memory directory with a policy header that requires human approval before any memory write. Idempotent — safe to run repeatedly.
Behavior
-
Resolve the memory directory. The path is
~/.claude/projects/<slug>/memory/where<slug>is derived from the session's starting CWD. Use the path the runtime provides — do not reimplement slug derivation. -
Ensure the directory exists. Create it if missing.
-
Create or update MEMORY.md.
- If
MEMORY.mddoes not exist: create it with the policy header below and no index entries. Leave any pre-existing.mdfiles in the directory as orphans —memory-audithandles those. - If
MEMORY.mdexists: compare the first block (everything before the first blank line after the closing-->) against the canonical header below. If it differs, replace the header, preserving all content after it.
- If
Canonical policy header
This is the source of truth. If the header in MEMORY.md does not
match this text exactly, replace it.
<!-- POLICY: Do not edit this file or any file in this directory without
explicit human approval. Before writing, propose the content to the human
and suggest where it belongs: repo memory, global CLAUDE.md, or a
plugin/skill issue. See the global CLAUDE.md memory management policy
for the full workflow. User-invoked skills (e.g., /handoff) are exempt. -->
Empty MEMORY.md template
When creating a new MEMORY.md, use this structure:
<!-- POLICY: Do not edit this file or any file in this directory without
explicit human approval. Before writing, propose the content to the human
and suggest where it belongs: repo memory, global CLAUDE.md, or a
plugin/skill issue. See the global CLAUDE.md memory management policy
for the full workflow. User-invoked skills (e.g., /handoff) are exempt. -->
(no entries yet)
Properties
- Idempotent. Running twice produces the same result.
- Header only. Never modifies index entries or other memory files.
- No category scaffolding. Future extension.
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.
- 5d ago First seen · 62 lines · 64 tokens per session scan A b665fc6e515d
memory-init is a skill published in the GitHub repository vergil-project/vergil-claude-plugin (2 stars, last pushed 3d ago), licensed MIT. It adds 64 tokens to every session and 576 once invoked, about $0.0003 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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