agent-memory

A way to store and retrieve useful, repository-specific knowledge in AGENTS.md files. A repository is the project folder containing a codebase and its related files.

In plain words
What is it for?
Use it to record setup instructions, build and test commands, code conventions, and other information that will help across different tasks.
Why use it?
It prevents future coding sessions from having to rediscover the project structure, commands, style rules, and workflows.

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/openhands/extensions/agent-memory
Any agent
npx skills add OpenHands/extensions --skill agent-memory
Clone the repo
git clone --depth 1 https://github.com/OpenHands/extensions

Made for: Claude Code, Codex.

Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 436 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 $0.00040 $0.00436
Opus 5 $0.00020 $0.00218
Sonnet 5 $0.00008 $0.00087
Haiku 4.5 $0.00004 $0.00044

Measured 2d ago against content hash f91fb602088b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agent-memory 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 2d 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/agent-memory/SKILL.md · 31 lines

What it actually says

  • Repository memory: Use AGENTS.md in each repository root to store and access important information.

    • If this file exists, it will be added to your context automatically.
    • If missing, you should create it unless the user has explicitly asked you to not do so.
  • Store and maintain general knowledge that will be helpful for most future tasks:

    1. Repository structure
    2. Common commands (build, lint, test, pre-commit, etc.)
    3. Code style preferences
    4. Workflows and best practices
    5. Any other repository-specific knowledge you learn
  • IMPORTANT: ONLY LOG the information that would be helpful for different future tasks, for example, how to configure the settings, how to setup the repository. Do NOT add issue-specific information (e.g., what specific error you have ran into and how you fix it).

  • When adding new information:

    • ALWAYS ask for user confirmation first by listing the exact items (numbered 1, 2, 3, etc.) you plan to save to AGENTS.md
    • Only save the items the user approves (they may ask you to save a subset)
    • Ensure it integrates nicely with existing knowledge in AGENTS.md
    • Reorganize the content if needed to maintain clarity and organization
    • Group related information together under appropriate sections or headings
    • If you've only explored a portion of the codebase, clearly note this limitation in the repository structure documentation
    • If you don't know the essential commands for working with the repository, such as lint or typecheck, ask the user and suggest adding them to AGENTS.md for future reference (with permission)

When you receive this message, please review and summarize your recent actions and observations, then present a list of valuable information that should be saved in AGENTS.md to the user.

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago First seen · 31 lines · 40 tokens per session scan A f91fb602088b

Subscribe to this mod's changes

agent-memory is a skill published in the GitHub repository OpenHands/extensions (137 stars, last pushed 4d ago), licensed MIT. It adds 40 tokens to every session and 436 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 2026-08-30.

Related

Other skills, from other repositories

systematic-debugging

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

obra/superpowers · 21 tokens

next-cache-components-adoption

Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…

vercel/next.js · 95 tokens

babysit-pr

Babysit a GitHub pull request after creation by continuously polling review comments, CI checks/workflow runs, and mergeability state until the PR is merged/closed or user help is required. Diagnose failures, retry likely flaky failures up to 3 times, auto-fix/push branch-related issues when appropriate, and keep…

openai/codex · 114 tokens

imagegen

Generate or edit raster images when the task benefits from AI-created bitmap visuals such as photos, illustrations, textures, sprites, mockups, or transparent-background cutouts. Use when Codex should create a brand-new image, transform an existing image, or derive visual variants from references, and the output…

openai/codex · 113 tokens

cpu-profile-analysis

Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…

microsoft/vscode · 71 tokens

next-cache-components-optimizer

Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…

vercel/next.js · 170 tokens