aithy: Skill for Claude Code

.claude/skills/ax-agent-memory-skills/SKILL.md

ax-agent-memory-skills is a skill for Claude Code from dosco/aithy. It costs 128 tokens per session (5,078 once invoked), scanned A, a copy of ax-agent-memory-skills, Apache-2.0.

Rules for adding memory retrieval and on-demand skill loading to AxAgent, a framework for building AI agents in TypeScript. It explains how an agent can find relevant past information or instructions during a run.

In plain words
What is it for?
Use it to configure memory and skill catalogues, implement search callbacks, build a context map for repeatedly inspected material, and access recalled memories or discovered skills from agent stages.
Why use it?
It prevents agents from placing every memory and skill guide into every prompt. Instead, they can search a local catalogue or connect retrieval to a backend such as a vector database or key-value store.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is dosco/aithy's own configuration. It tells Claude Code how to work on aithy itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything aithy configures →

Reuse

Borrowing it

Nothing to install: this file belongs to dosco/aithy. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/dosco/aithy/main/.claude/skills/ax-agent-memory-skills/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/dosco/aithy

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Your own site
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agentmods 80×15 button for ax-agent-memory-skills

Your own site · 80×15
<a href="https://agentmods.dev/skills/dosco/aithy/ax-agent-memory-skills"><img src="https://agentmods.dev/badge/skills/dosco/aithy/ax-agent-memory-skills.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 128 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,078 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 97% copy Near-identical to another mod 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 $0.00128 $0.05078
Opus 5 $0.00064 $0.02539
Sonnet 5 $0.00026 $0.01016
Haiku 4.5 $0.00013 $0.00508

Measured 5d ago against content hash ba35d6f1c636, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

ax-agent-memory-skills 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.

Origin

This is a copy

97% identical to ax-agent-memory-skills — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/ax-agent-memory-skills/SKILL.md · 444 lines

How it starts

The opening of the file, as written. The whole thing — 444 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AxAgent Memory And Skills Rules (@ax-llm/ax)

Use this skill when an agent needs a persistent context map, task-relevant memory retrieval, or skill guides loaded into the executor prompt on demand. For ordinary agent setup use ax-agent. For RLM runtime policy use ax-agent-rlm. For callbacks and telemetry use ax-agent-observability.

Use These Defaults

  • Use a static skillsCatalog / memoriesCatalog when the skill guides or memories fit in a plain array — Ax then backs discover({ skills }) / recall(...) with a built-in deterministic local search and no host search code is needed.
  • Use onSkillsSearch / onMemoriesSearch when retrieval needs a real backend (vector DB, BM25 service, KV). A host callback always takes precedence over the catalog's built-in search.
  • Use contextMap when repeated runs inspect the same long external context and should accumulate a small orientation cache automatically.
  • recall(...) is available to distiller and executor stages when onMemoriesSearch or a non-empty memoriesCatalog is set.
  • discover({ skills }) is available to the executor when onSkillsSearch or a non-empty skillsCatalog is set.
  • With skillsCatalog, the executor prompt also gains a static ### Available Skills index (id + name + description), so skill discovery is targeted instead of blind.
  • Both recall(...) and discover({ skills }) return void. The loaded content appears on the next turn.
  • Use onLoadedMemories / onLoadedSkills to observe what got loaded.
  • Use onUsedMemories / onUsedSkills to track what the actor says it actually relied on.
  • Child agents do not inherit memory or skills search callbacks; wire them explicitly on every agent that needs the capability.

Context Map

Use contextMap when repeated runs ask different questions over the same long context, document set, or repository. The map is prompt-resident orientation knowledge: structure, concepts, constants, parsing schema, reusable aggregate results, and concrete error patterns. It is not a task-specific answer cache.

Read the full file on GitHub · 444 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 Changed · +5 lines ba35d6f1c636
  2. 9d ago First seen · 439 lines · 128 tokens per session scan A 9c63954e411b

Subscribe to this mod's changes

ax-agent-memory-skills is a skill published in the GitHub repository dosco/aithy (107 stars, last pushed 8d ago), licensed Apache-2.0. It adds 128 tokens to every session and 5,078 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 97% identical to ax-agent-memory-skills, differing in 2 lines, and is treated as a copy.

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