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/sandraschi/steam-mcp/agents-mdgit clone --depth 1 https://github.com/sandraschi/steam-mcpWrote 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/sandraschi/steam-mcp/agents-md)<a href="https://agentmods.dev/instructions/sandraschi/steam-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/sandraschi/steam-mcp/agents-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 | $0.00598 | $0.00598 |
| Opus 5 | $0.00299 | $0.00299 |
| Sonnet 5 | $0.00120 | $0.00120 |
| Haiku 4.5 | $0.00060 | $0.00060 |
Grade A, and why
steam-mcp AGENTS.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 4d 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.
What it actually says
Steam-MCP Agent Context
Repo
steam-mcp — FastMCP 3.2 portmanteau server for Steam profile, library, stats, store, and Workshop. v0.3.1
Ports
- Backend: 11020 (FastAPI + MCP HTTP at /mcp)
- Frontend: 11021 (Vite dev; Tauri native uses same webapp)
- Env:
BACKEND_PORT,FRONTEND_PORT
Auth
STEAM_API_KEY— profile, library, workshop, wishlistSTEAM_ID— default account for own profile / library- Public: store search, app details, news, player counts
AI / chat (webapp)
STEAM_CHAT_MODE—hybrid(default) |llm|rulesAI_PROVIDER,AI_ENDPOINT,AI_MODEL— Ollama / OpenAI-compatibleSTEAM_SAMPLING_BASE_URL— fallback forAI_ENDPOINTSTEAM_PREFAB_APPS=0— disable prefab-ui App tools (dict fallbacks)
Portmanteau tools
steam_profile— own | summaries | friends | resolve_vanitysteam_library— owned | recent | details | wishliststeam_stats— achievements | global_percentages | players | leaderboardssteam_store— news | search | reviewssteam_workshop— query | item_detailssteam_system— status | steamcmd_statussteam_help,agentic_steam_workflow, Prefabshow_*cards
Packaging
manifest.json+just mcpb-pack→dist/steam-mcp.mcpbglama.json,llms.txt,llms-full.txt— discovery / LLM corpusnative/— Tauri 2 + PyInstaller sidecar (build-sidecar.ps1,build.ps1)
Layout
src/steam_mcp/services/— Steam API logicsrc/steam_mcp/mcp/tools/— portmanteau, prefab, prompts, resources, agenticsrc/steam_mcp/skills/steam-mcp/SKILL.md— agent skill (alsoSkillsDirectoryProvider)
Commands
just run— STDIO MCPjust serve— HTTP + REST + MCPjust test/just smoke/just mcpb-packjust native-dev/just native-buildstart.ps1/webapp/start.ps1— full stack
Install docs: mcp-central-docs/standards/AGENT_INSTALL_REFERENCE.md
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.
- 4d ago First seen · 49 lines · 598 tokens per session scan A b37e3e131ef5
steam-mcp AGENTS.md is an instructions file published in the GitHub repository sandraschi/steam-mcp (1 stars, last pushed 4d ago), licensed MIT. It adds 598 tokens to every session, about $0.0030 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.
Other instructions, from other repositories
comedot AGENTS.md
AGENTS.md instructions for InvadingOctopus/comedot, covering agents.md, guidelines for the comedot project and repository, project overview, folder structure & module organization and subsystems.
turn-based-game-mcp mcp-server.instructions.md
MCP server development patterns for the turn-based games platform.
turn-based-game-mcp shared-library.instructions.md
Shared library development patterns for the turn-based games platform.
turn-based-game-mcp ui-components.instructions.md
React component development patterns for the turn-based games platform.
turn-based-game-mcp copilot-instructions.md
Copilot instructions for chrisreddington/turn-based-game-mcp, covering turn-based games platform, purpose, repository structure, code standards and required before each commit.
everything-game-dev-code copilot-instructions.md
Copilot instructions for MRCalderon3D/everything-game-dev-code, covering github copilot repository instructions, repository intent, how to navigate the repository, working rules and repository maintenance.