rekal-hygiene

rekal-hygiene is a skill for Claude Code from janbjorge/rekal. It costs 77 tokens per session (878 once invoked), scanned A, original, MIT.

A maintenance guide for reviewing a rekal memory database, which stores information for later coding sessions.

In plain words
What is it for?
Use it for regular memory health checks, cleanup proposals, and reviewing which stored facts should be updated or removed.
Why use it?
It helps find duplicate, conflicting, incomplete, or outdated memories without changing anything automatically.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the rekal-skills plugin — 4 skills, 4 hooks shipped together

Good fit Use it for regular memory health checks, cleanup proposals, and reviewing which stored facts should be updated or removed.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/janbjorge/rekal/rekal-hygiene
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.

Any agent
npx skills add janbjorge/rekal --skill rekal-hygiene
Clone the repo
git clone --depth 1 https://github.com/janbjorge/rekal

Made for: Claude Code.

Or install rekal-skills, the plugin that ships this one along with the rest of its 4 skills, 4 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 rekal-hygiene

README.md
[![agentmods](https://agentmods.dev/badge/skills/janbjorge/rekal/rekal-hygiene/github.svg)](https://agentmods.dev/skills/janbjorge/rekal/rekal-hygiene)
Your own site
<a href="https://agentmods.dev/skills/janbjorge/rekal/rekal-hygiene"><img src="https://agentmods.dev/badge/skills/janbjorge/rekal/rekal-hygiene/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for rekal-hygiene

Your own site · 80×15
<a href="https://agentmods.dev/skills/janbjorge/rekal/rekal-hygiene"><img src="https://agentmods.dev/badge/skills/janbjorge/rekal/rekal-hygiene.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 878 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00077 $0.00878
Opus 5 $0.00039 $0.00439
Sonnet 5 $0.00015 $0.00176
Haiku 4.5 $0.00008 $0.00088

Measured 12d ago against content hash 3705cb2426ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

rekal-hygiene 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 12d 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/rekal-hygiene/SKILL.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Find and fix problems in the rekal database. Every change requires explicit user approval. Never auto-delete. Never auto-modify.

Step 1: Health overview

rekal health

Report one line:

"142 memories across 3 projects, spanning 6 months."

Step 2: Audit the full store

rekal export

This prints every memory as JSON (id, content, project, tags, timestamps). Read it and group entries that cover the same fact/preference/procedure.

Per finding, classify and propose:

Issue?
├── Duplicates / same topic stored twice
│   └── Identify the most complete version, propose replacing the others:
│       memory_store(content="<best content>", replaces="<older id>")
│
├── Contradiction: one outdated, one current
│   └── Propose: memory_store(content="<current content>", replaces="<outdated id>")
│
├── Contradiction: unclear which is correct
│   └── Ask user: "Which is correct? [A] or [B]?"
│
├── Project-specific content but project missing
│   └── Propose: memory_store(content="<same content>", project="<name>", replaces="<id>")
│
├── Content < 20 characters or meaningless alone
│   └── Propose: reword with more context (store with replaces), or delete if worthless
│
└── No issues → skip

Skip memories created < 24 hours ago: too fresh to judge.

Step 3: Present action plan

Compile ALL proposals into one summary:

Hygiene report:

  • 3 duplicate clusters: 8 memories → 3
  • 2 contradictions: 1 replace, 1 needs your call
  • 2 unscoped memories to re-scope

Approve all? Or review individually?

Wait for explicit approval. Do NOT execute anything until user approves.

Step 4: Execute approved changes

After user approves (all or specific items):

  1. Run each approved operation:
    • memory_store(..., replaces=<id>) for duplicates, corrections, re-scoping
    • memory_delete only for worthless entries (user explicitly approved)
    • rekal prune --older-than-days N --yes for approved bulk cleanup
  2. Report what was done, one line per action
  3. Run rekal health again, report improvement:

Read the full file on GitHub · 107 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. 12d ago First seen · 107 lines · 77 tokens per session scan A 3705cb2426ab

Subscribe to this mod's changes

rekal-hygiene is a skill published in the GitHub repository janbjorge/rekal (53 stars, last pushed 17d ago), licensed MIT. It adds 77 tokens to every session and 878 once invoked, about $0.0004 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.

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