memory-sanitizer

memory-sanitizer is a skill for Claude Code, Codex from Stijnman/grok-custom-skills. It costs 35 tokens per session (354 once invoked), scanned A, original, MIT.

A memory-cleaning guide that rates stored information by trustworthiness and marks or removes information that may be unreliable.

In plain words
What is it for?
Use it to review retrieved memories, clean a knowledge graph, identify conflicts, and ask for confirmation when stored facts are uncertain.
Why use it?
It helps prevent old, unconfirmed, or deliberately misleading information from influencing later answers.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to review retrieved memories, clean a knowledge graph, identify conflicts, and ask for confirmation when stored facts are uncertain.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/stijnman/grok-custom-skills/memory-sanitizer
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 Stijnman/grok-custom-skills --skill memory-sanitizer
Clone the repo
git clone --depth 1 https://github.com/Stijnman/grok-custom-skills

Made for: Claude Code, Codex.

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-sanitizer

README.md
[![agentmods](https://agentmods.dev/badge/skills/stijnman/grok-custom-skills/memory-sanitizer/github.svg)](https://agentmods.dev/skills/stijnman/grok-custom-skills/memory-sanitizer)
Your own site
<a href="https://agentmods.dev/skills/stijnman/grok-custom-skills/memory-sanitizer"><img src="https://agentmods.dev/badge/skills/stijnman/grok-custom-skills/memory-sanitizer/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 memory-sanitizer

Your own site · 80×15
<a href="https://agentmods.dev/skills/stijnman/grok-custom-skills/memory-sanitizer"><img src="https://agentmods.dev/badge/skills/stijnman/grok-custom-skills/memory-sanitizer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 354 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.
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 $0.00035 $0.00354
Opus 5 $0.00017 $0.00177
Sonnet 5 $0.00007 $0.00071
Haiku 4.5 $0.00003 $0.00035

Measured 11d ago against content hash b4ddf2c43ddc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

memory-sanitizer 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 11d 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.

.grok/skills/memory-sanitizer/SKILL.md · 48 lines

What it actually says

Memory Sanitizer

When to Use

  • User says sanitize memory or task matches this capability
  • User says trust score retrieval or task matches this capability
  • User says clean knowledge graph or task matches this capability

Workflow

  1. For each memory entry, score trust 0-10 (source, recency, user-confirmed).
  2. Discard entries below 4 unless user explicitly references them.
  3. Prefix 4-6 scores with [unverified memory] when citing.
  4. Flag contradictions between entries; prefer user-confirmed.

Integrations

  • semantic-memory-manager
  • knowledge-graph-builder
  • agentic-uncertainty-quantifier

Error Handling

Failure Response
All entries low trust Ask user to confirm facts before proceeding.
Contradictory memories Present both; ask user to resolve.

Gotchas

  • Delegate retrieval to semantic-memory-manager when installed.

Example

Input: User request matching triggers above. Output: Structured result per workflow with integrations invoked as needed.

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. 11d ago First seen · 48 lines · 35 tokens per session scan A b4ddf2c43ddc

Subscribe to this mod's changes

memory-sanitizer is a skill published in the GitHub repository Stijnman/grok-custom-skills (9 stars, last pushed today), licensed MIT. It adds 35 tokens to every session and 354 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.