maintain

A maintenance skill for checking and repairing the health of a knowledge base, including links, citations, stale information, missing pages, and filing problems. A knowledge base is a collection of stored notes or documents.

In plain words
What is it for?
Use it to audit the knowledge base, run health checks, repair issues, or start its scheduled maintenance cycle.
Why use it?
It finds broken references, outdated content, isolated pages, and other quality issues that are difficult to spot manually.

Skill for Claude CodeCodex

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/timurgaleev/memex/maintain
Any agent
npx skills add timurgaleev/memex --skill maintain
Clone the repo
git clone --depth 1 https://github.com/timurgaleev/memex

Made for: Claude Code, Codex.

Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,682 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 $0.00044 $0.03682
Opus 5 $0.00022 $0.01841
Sonnet 5 $0.00009 $0.00736
Haiku 4.5 $0.00004 $0.00368

Measured 3d ago against content hash f943a0dba9b3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

maintain 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 3d 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.

deploy/skills/maintain/SKILL.md · 397 lines

How it starts

The opening of the file, as written. The whole thing — 397 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Maintain Skill

Periodic brain health checks and cleanup.

Contract

This skill guarantees:

  • All health dimensions are checked (stale, orphan, dead links, cross-refs, backlinks, citations, filing, tags)
  • Each issue found has a specific fix action
  • Back-link iron law is enforced
  • Citation format is validated against the standard
  • Results are reported with counts per dimension

Phases

Autonomous path — when you want the brain fixed, not audited

If the user asks "fix what's broken" or "get my brain healthy", prefer the server's own machinery over walking each dimension by hand:

memex doctor            # categorized report: brain / ops / meta findings
memex cycle             # run the full background maintenance cycle now

run_doctor (or memex doctor from the shell) reports every dimension with a cause-ranked, root-first list — fix the root causes first, the downstream findings usually clear themselves. The background cycle already remediates most mechanical dimensions on its own schedule: embedding backfill, link derivation, decay, salience, chronicle. For heavy one-off work (bulk re-embedding, large backfills), submit a durable job with jobs_submit and watch it with jobs_get / jobs_logs rather than blocking the conversation.

When a target is unreachable for the brain (an empty brain with no entity pages cannot have graph coverage; a brain with no embeddings configured cannot have vector freshness), report what's missing rather than looping.

Use the per-dimension walk below when:

  • The user explicitly asks for a dimension-by-dimension audit
  • You're investigating why doctor keeps reporting the same finding
  • A specific dimension needs manual judgment that the automatic path skips

Manual path

  1. Run health check. Call run_doctor and stats to get the dashboard.
  2. Check each dimension:

Stale pages

Pages where compiled_truth is older than the latest timeline entry. The assessment hasn't been updated to reflect recent evidence.

  • Check the doctor output for stale page findings
  • For each stale page: page_get it, review the timeline, determine if compiled_truth needs rewriting

Read the full file on GitHub · 397 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. 3d ago First seen · 397 lines · 44 tokens per session scan A f943a0dba9b3

Subscribe to this mod's changes

maintain is a skill published in the GitHub repository timurgaleev/memex (8 stars, last pushed 8d ago), licensed MIT. It adds 44 tokens to every session and 3,682 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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