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.
npx agentmods add instructions/joshsymonds/savecraft.gg/claude-mdgit clone --depth 1 https://github.com/joshsymonds/savecraft.ggWrote 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/joshsymonds/savecraft.gg/claude-md)<a href="https://agentmods.dev/instructions/joshsymonds/savecraft.gg/claude-md"><img src="https://agentmods.dev/badge/instructions/joshsymonds/savecraft.gg/claude-md.svg" alt="Measured on agentmods" 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 | $0.01952 | $0.01952 |
| Opus 5 | $0.00976 | $0.00976 |
| Sonnet 5 | $0.00390 | $0.00390 |
| Haiku 4.5 | $0.00195 | $0.00195 |
Grade A, and why
savecraft.gg CLAUDE.md 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Savecraft
Project Overview
Savecraft parses video game save files and serves structured game state to AI assistants via MCP. Two components: a local Go daemon (WASM plugin runtime, filesystem watcher) and a remote Cloudflare Worker (MCP server, WebSocket push, SourceHub + UserHub Durable Objects).
Documentation
Read the doc relevant to your current task. Start with overview.md for orientation.
docs/overview.md— What Savecraft is, system architecture, data flow, repo structuredocs/games.md— Supported games: sections each connector produces, reference module descriptionsdocs/daemon.md— Go daemon: orchestrator, watcher, plugin loading, WebSocket client (internal/,cmd/)docs/worker.md— Cloudflare Worker: SourceHub + UserHub DOs, WebSocket protocol, D1 schemas (worker/)docs/mcp.md— OAuth architecture, MCP tools, notes, search, AI interaction patterns (worker/src/mcp/)docs/views.md— MCP Apps views: interactive UIs in host iframes, Svelte components, build pipeline (views/,worker/src/mcp/views/)docs/view-design.md— View design guide: when to build a view vs website, interaction patterns, visual principlesdocs/plugins.md— WASM plugin system, ndjson contract, signing, distribution (plugins/)docs/plugin-development.md— Local plugin dev workflow: build, auto-reload, staging, troubleshootingdocs/adapters.md— API game adapters: server-side TypeScript modules for API-backed games (worker/src/adapters/)docs/web.md— SvelteKit frontend, onboarding, components (web/)docs/infrastructure.md— CI/CD, deployment, signing, installation, security (.github/,install/)docs/roadmap.md— Planned features: game adapters, reference data, monetization, game roadmapdocs/mcp-design.md— Cross-platform MCP tool design best practices (external reference)
Tech Stack
- Daemon: Go 1.26, wazero (WASM runtime), fsnotify, nhooyr.io/websocket
- Cloud: Cloudflare Workers (TypeScript), Durable Objects, R2, D1 (SQLite/FTS5)
- Auth: Clerk (OAuth, JWT, magic links)
- Frontend: SvelteKit, TypeScript
- Plugins: Go compiled to WASI Preview 1 (.wasm), ndjson stdout contract, Ed25519 signed
- Protocol: Binary protobuf on all WebSocket legs.
Message(daemon↔server),RelayedMessage(server→browser). Schema: proto/protocol.proto → buf generate → Go + worker TS + web TS - Build: just (Justfile), nix devenv + direnv
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.
- 6d ago First seen · 103 lines · 1,952 tokens per session scan A ae9622cfcdc4
savecraft.gg CLAUDE.md is an instructions file published in the GitHub repository joshsymonds/savecraft.gg (12 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 1,952 tokens to every session, about $0.0098 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.
Other instructions, from other repositories
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nes-php-glfw copilot-instructions.md
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Instructions for dungnotnull/base-building-trap-defense-design-agent-skill, covering claude.md — skill 250: base-building-trap-defense-design, skill identity, problem this skill solves, harness flow summary and sub-skills.
trident-mcp AGENTS.md
Instructions for mordor-forge/trident-mcp, covering agents.md, what this is, build and test, single-file verification and e2e tests.
unreal-mcp-additional-tools CLAUDE.md
Claude Code instructions for nodormu/unreal-mcp-additional-tools, covering claude.md, what this is, commands, architecture and transports (src/transports/).