Borrowing it
Nothing to install: this file belongs to unvulcanised-watercress762/mem9. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/unvulcanised-watercress762/mem9/main/AGENTS.mdgit clone --depth 1 https://github.com/unvulcanised-watercress762/mem9Wrote 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.
[](https://agentmods.dev/instructions/unvulcanised-watercress762/mem9/agents-md)<a href="https://agentmods.dev/instructions/unvulcanised-watercress762/mem9/agents-md"><img src="https://agentmods.dev/badge/instructions/unvulcanised-watercress762/mem9/agents-md/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.
<a href="https://agentmods.dev/instructions/unvulcanised-watercress762/mem9/agents-md"><img src="https://agentmods.dev/badge/instructions/unvulcanised-watercress762/mem9/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01827 | $0.01827 |
| Opus 5 | $0.00914 | $0.00914 |
| Sonnet 5 | $0.00365 | $0.00365 |
| Haiku 4.5 | $0.00183 | $0.00183 |
Grade A, and why
mem9 AGENTS.md scanned grade A with 1 finding 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- `curl` calls use explicit timeouts. How it starts
The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.
What this repo is
mnemos is shared, cloud-persistent memory for coding agents. The core system is a Go REST server backed by TiDB/MySQL, plus three agent integrations, a standalone CLI, and a small Astro site.
High-level modules
| Path | Role |
|---|---|
server/ |
Go API server, business logic, TiDB SQL, tenant provisioning |
cli/ |
Standalone Go CLI for exercising mnemo-server endpoints |
openclaw-plugin/ |
OpenClaw memory plugin (kind: "memory") |
opencode-plugin/ |
OpenCode plugin (@mem9/opencode) |
claude-plugin/ |
Claude Code plugin (hooks + skills) |
docs/design/ |
Architecture/proposal notes and design drafts |
site/ |
Astro static site — deployed to Netlify from main branch |
e2e/ |
Live end-to-end scripts against a running server |
k8s/ |
Deployment and gateway manifests |
benchmark/MR-NIAH/ |
Benchmark harness for OpenClaw memory evaluation |
Commands
# Go server build / verify
make build
make vet
make test
make test-integration
# Single Go test
cd server && go test -race -count=1 -run TestFunctionName ./internal/service/
# TypeScript verification
cd openclaw-plugin && npm run typecheck
cd opencode-plugin && npm run typecheck
# Site dev/build
cd site && npm run dev
cd site && npm run build
# CLI build
cd cli && go build -o mnemo .
# Run server locally
cd server && MNEMO_DSN="user:pass@tcp(host:4000)/db?parseTime=true" go run ./cmd/mnemo-server
Global conventions
- Architecture is strict
handler -> service -> repository; plugins always call the HTTP API. - No ORM. Server SQL is raw
database/sqlwith parameter placeholders only. embed.New()andllm.New()may returnnil; callers must branch correctly.- Vector and keyword search each fetch
limit * 3before RRF merge. INSERT ... ON DUPLICATE KEY UPDATEis the expected upsert pattern.- Atomic version bump happens in SQL:
SET version = version + 1. X-Mnemo-Agent-Idis the per-agent identity header for memory requests.- Always use
maketargets for building and Docker image operations — never construct rawgo buildordocker buildcommands from scratch. Usemake build-linuxfor the server binary andREGISTRY=<ecr> COMMIT=<tag> make dockerfor images.
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.
- 12d ago First seen · 177 lines · 1,827 tokens per session scan A 7e12e24b2cb1
mem9 AGENTS.md is an instructions file published in the GitHub repository unvulcanised-watercress762/mem9 (3 stars, last pushed yesterday), licensed Apache-2.0. It adds 1,827 tokens to every session, about $0.0091 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other instructions, from other repositories
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).