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 skills add tjdrhs90/flutter-flame-harness --skill flame-harness-contractgit clone --depth 1 https://github.com/tjdrhs90/flutter-flame-harnessWrote 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/skills/tjdrhs90/flutter-flame-harness/flame-harness-contract)<a href="https://agentmods.dev/skills/tjdrhs90/flutter-flame-harness/flame-harness-contract"><img src="https://agentmods.dev/badge/skills/tjdrhs90/flutter-flame-harness/flame-harness-contract/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/skills/tjdrhs90/flutter-flame-harness/flame-harness-contract"><img src="https://agentmods.dev/badge/skills/tjdrhs90/flutter-flame-harness/flame-harness-contract.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00035 | $0.02890 |
| Opus 5.5 | $0.00014 | $0.01156 |
| Sonnet 5.5 | $0.00007 | $0.00578 |
| Haiku 4.5 | $0.00003 | $0.00289 |
Grade A, and why
flame-harness-contract 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 2mo 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 — 257 lines — stays where its author put it; the contents beside it link to each section on GitHub.
flame-harness-contract
Phase 4 of the flutter-flame-harness pipeline. Reads the PRD and design doc, proposes verifiable completion criteria (Mandatory Hard Gates + Functional Criteria), and marks the contract AGREED before handing off to the generator.
All file schemas (config.md, state.md, contract.md) are defined in
docs/harness-protocol.md — refer to that document as the single source of truth. Do not
redefine schemas here.
Input
1. Read docs/harness/config.md
Extract:
| Key | Use |
|---|---|
app_name |
Contract title header |
app_slug |
Used to identify the game |
strict_mode |
If true, run --strict negotiation; if false (or absent), run default 1-pass |
2. Read the latest PRD
Find the most recent file matching docs/harness/plans/*-prd.md (sort by filename descending,
take the first). Abort with a clear message if none exists.
3. Read the design doc
Find the most recent file matching docs/harness/plans/*-design.md (sort by filename
descending, take the first). Abort if none exists.
Mandatory Hard Gates
These 8 criteria are non-negotiable and must appear verbatim in every contract.md. A FAIL on
any one results in an immediate FAIL verdict, regardless of other passing criteria.
Source:
docs/harness-protocol.md§3 — Mandatory Hard Gates block. Always cite; never restate differently.
flutter analyzereturns zero issues.flutter test— all tests pass.- No TODO, stub, or placeholder in game logic (grep-checkable).
- All tuning constants centralized in
game_config.dart— no magic numbers in gameplay code. - Game content (enemies / levels / waves) is defined as data, not hardcoded.
- Localization complete for all configured locales —
default_language, plus English whendefault_language≠en— no missing l10n keys. - Core loop works end to end: start → play → win/lose → restart.
- Runs on a simulator/emulator with zero crashes and zero console errors.
Copy these 8 lines verbatim into the ## Mandatory Hard Gates section of contract.md. Do not
paraphrase, reorder, or omit any gate.
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.
- 2mo ago First seen · 257 lines · 35 tokens per session scan A fa1f62321624
flame-harness-contract is a skill published in the GitHub repository tjdrhs90/flutter-flame-harness (61 stars, last pushed 10d ago), licensed MIT. It adds 35 tokens to every session and 2,890 once invoked, about $0.0001 per session on Opus 5.5. 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.
flame-harness-contract compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| flame-harness-contracttjdrhs90/flutter-flame-harness | Skill | 61 | 10d ago | MIT | A | 35 | Claude Code |
| variable-rewardsrshankras/claude-code-apple-skills | Skill | 864 | 2d ago | MIT | A | 45 | Claude Code |
| forge-gameForgeyClap/claude-forge | Skill | 2 | 1mo ago | MIT | A | 0 | Claude Code |
| minecraft-modpack-serverStarryCod/cogitum | Skill | 12 | 5mo ago | MIT | B | 19 | Claude Code, Codex |
| release-checklistDonchitos/Claude-Code-Game-Studios | Skill | 36k | 19d ago | MIT | A | 20 | Claude Code |
| day-one-patchDonchitos/Claude-Code-Game-Studios | Skill | 36k | 19d ago | MIT | A | 29 | Claude Code |
| quick-designDonchitos/Claude-Code-Game-Studios | Skill | 36k | 19d ago | MIT | A | 27 | Claude Code |