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 commands/stealthsrc/steam-mcp/achievementsgit clone --depth 1 https://github.com/stealthsrc/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/commands/stealthsrc/steam-mcp/achievements)<a href="https://agentmods.dev/commands/stealthsrc/steam-mcp/achievements"><img src="https://agentmods.dev/badge/commands/stealthsrc/steam-mcp/achievements.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 | $0.00014 | $0.00314 |
| Opus 5 | $0.00007 | $0.00157 |
| Sonnet 5 | $0.00003 | $0.00063 |
| Haiku 4.5 | $0.00001 | $0.00031 |
Grade A, and why
achievements 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 3d 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
Show achievement progress for: $ARGUMENTS
The argument is in the format <steamid_or_vanity> <game_name>.
Extract the first word/token as the steamid or vanity URL, and the rest as the game name query.
Do the following steps in order:
- Use
steam_search_gamewith the game name part to find the AppID (limit: 3) - In parallel, use the top AppID result to call:
steam_get_achievementswith the player steamid, the AppID, language="english", status="all"steam_get_global_achievement_statswith the AppID
Then present the results:
Achievements - {Game Name} - {Player}
Progress: X/Y (Z%)
Cross-reference each unlocked achievement with its global unlock rate from steam_get_global_achievement_stats.
Highlight the rarest unlocked achievements (lowest global %) with a note like "rare - only X% of players".
Show two tables:
Unlocked
| Achievement | Unlocked on | Global % | Rarity | (sorted by global % ascending - rarest first)
Still locked
| Achievement | Global % | (sorted by global % descending - easiest first, so the player knows what to do next)
At the end, add a link to the achievements page:
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.
- 3d ago First seen · 37 lines · 14 tokens per session scan A 0812913869fb
achievements is a command published in the GitHub repository stealthsrc/steam-mcp (1 stars, last pushed 10d ago), licensed MIT. It adds 14 tokens to every session and 314 once invoked, about $0.0001 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.
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