What is flame-harness-retro?

The final review step for a Flutter game or app production pipeline. It scores the completed work against nine harness-design principles and game-quality criteria, writes a retrospective, and marks the pipeline complete.

Use it after the pipeline finishes to inspect its configuration and logs, produce the retrospective report, record quality scores, and close the project.

It creates a documented assessment of what worked, what did not, and whether the finished pipeline met its design goals.

flame-harness-retro — Skill for Claude Code by tjdrhs90

Install

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.

Any agent

npx skills add tjdrhs90/flutter-flame-harness --skill flame-harness-retro

Clone the repo

git clone --depth 1 https://github.com/tjdrhs90/flutter-flame-harness

Made for: Claude Code.

Or install flutter-flame-harness, the plugin that ships this one along with the rest of its 14 skills.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/tjdrhs90/flutter-flame-harness/flame-harness-retro/github.svg)](https://agentmods.dev/skills/tjdrhs90/flutter-flame-harness/flame-harness-retro)

Your own site

<a href="https://agentmods.dev/skills/tjdrhs90/flutter-flame-harness/flame-harness-retro"><img src="https://agentmods.dev/badge/skills/tjdrhs90/flutter-flame-harness/flame-harness-retro/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/tjdrhs90/flutter-flame-harness/flame-harness-retro"><img src="https://agentmods.dev/badge/skills/tjdrhs90/flutter-flame-harness/flame-harness-retro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,170 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

SkillSpector: 1 finding, up to low

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

low Excessive Agency · line 156
Skill's behavior or capabilities extend beyond its stated purpose. Scope creep allows an agent to perform actions unrelated to its documented functionality, increasing the attack surface.

Fix: Limit the skill's scope to its documented purpose. Remove instructions that enable the agent to perform actions outside its stated functionality.

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

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	$0.00032	$0.03170
Opus 5.5	$0.00013	$0.01268
Sonnet 5.5	$0.00006	$0.00634
Haiku 4.5	$0.00003	$0.00317

Measured 2mo ago against content hash 5ea1d87a4d6c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

flame-harness-retro 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.

skills/flame-harness-retro/SKILL.md · 324 lines

How it starts

The opening of the file, as written. The whole thing — 324 lines — stays where its author put it; the contents beside it link to each section on GitHub.

flame-harness-retro

Phase 11 (final) of the flutter-flame-harness pipeline. Scores the completed pipeline against Anthropic's 9 harness-design principles and game quality criteria, then writes the retrospective report and sets the pipeline to completed.

All file schemas (config.md, state.md, build-log.md, pipeline-log.md) and the phase transition table are defined in docs/harness-protocol.md — that document is the single source of truth (§1 config.md; §2 state.md keys; §3 contract.md layout; §4 handoff layout; §5 feedback layout; §6 log schemas; §7 retro → complete → status=completed transition). Do not redefine schemas here.

Boundary: This is the terminal phase. After writing docs/harness/retro.md and updating state.md, no further skill dispatch occurs. The pipeline ends.

Prerequisites: flame-harness-resume dispatched this skill with next_role: retro; state.md shows current_phase: retro.

Inputs — Read All Harness Artifacts

Before scoring, load all available evidence:

docs/harness/config.md — extract app_slug, app_name, max_rounds, strict_mode, skip_research, skip_admob (per protocol §1).
docs/harness/state.md — confirm current_phase: retro; read current_round, resume_attempts (per protocol §2).
docs/harness/contract.md — review the negotiated Hard Gates and Functional Criteria, and the final Status: AGREED line (per protocol §3).
docs/harness/handoff/ — read all round-N-gen.md files; note what was built / fixed per round, and any self-assessment failures (per protocol §4).
docs/harness/feedback/ — read all round-N-qa.md files; note PASS/FAIL verdicts, evidence commands run, and specific failed criteria (per protocol §5).
docs/harness/build-log.md — read the full build log table (per protocol §6).
docs/harness/pipeline-log.md — read the full pipeline event log (per protocol §6).
Git log: run git log --oneline to count commits and identify rework patterns.

Read the full file on GitHub · 324 lines

Changes

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 · 324 lines · 32 tokens per session scan A 5ea1d87a4d6c

Subscribe to this mod's changes

flame-harness-retro is a skill published in the GitHub repository tjdrhs90/flutter-flame-harness (61 stars, last pushed 10d ago), licensed MIT. It adds 32 tokens to every session and 3,170 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.

Claude Code Game development agentic ai-agent anthropic app-store automation

flame-harness-retro next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
flame-harness-retrotjdrhs90/flutter-flame-harness	Skill	61	10d ago	MIT	A	32	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

flame-harness-retro

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

How it starts

flame-harness-retro

Inputs — Read All Harness Artifacts

What this file has done since we first saw it

flame-harness-retro compared with skills from other repositories