memory-init

memory-init is a skill for Claude Code from vergil-project/vergil-claude-plugin. It costs 64 tokens per session (576 once invoked), scanned A, original, MIT.

A setup procedure for a project's memory directory and its `MEMORY.md` policy file. The policy requires human approval before anything is written to that memory directory.

In plain words
What is it for?
Initialize missing project memory, create or update the policy header, and ensure the memory directory exists.
Why use it?
It gives project memory a consistent location and protects it from unapproved changes. Running it again refreshes the policy without discarding the rest of `MEMORY.md`.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: reads .claude/ paths; mentions CLAUDE.md.

Part of the vergil plugin — 15 skills, 2 agents, 2 hooks shipped together

Install

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.

agentmods
npx agentmods add skills/vergil-project/vergil-claude-plugin/memory-init
Any agent
npx skills add vergil-project/vergil-claude-plugin --skill memory-init
Clone the repo
git clone --depth 1 https://github.com/vergil-project/vergil-claude-plugin

Made for: Claude Code.

Or install vergil, the plugin that ships this one along with the rest of its 15 skills, 2 agents, 2 hooks.

Wrote 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.

agentmods badge for memory-init

README.md
[![agentmods](https://agentmods.dev/badge/skills/vergil-project/vergil-claude-plugin/memory-init.svg)](https://agentmods.dev/skills/vergil-project/vergil-claude-plugin/memory-init)
Your own site
<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>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 576 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce 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

Measured 5d ago against content hash b665fc6e515d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

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.

skills/memory-init/SKILL.md · 62 lines

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

  1. 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.

  2. Ensure the directory exists. Create it if missing.

  3. Create or update MEMORY.md.

    • If MEMORY.md does not exist: create it with the policy header below and no index entries. Leave any pre-existing .md files in the directory as orphans — memory-audit handles those.
    • If MEMORY.md exists: 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.

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.

Read the full file on GitHub · 62 lines

Changes

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.

  1. 5d ago First seen · 62 lines · 64 tokens per session scan A b665fc6e515d

Subscribe to this mod's changes

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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