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 skills/yendangn/flutter-app-builder/flutter-releasenpx skills add yendangn/flutter-app-builder --skill flutter-releasegit clone --depth 1 https://github.com/yendangn/flutter-app-builderWrote 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/yendangn/flutter-app-builder/flutter-release)<a href="https://agentmods.dev/skills/yendangn/flutter-app-builder/flutter-release"><img src="https://agentmods.dev/badge/skills/yendangn/flutter-app-builder/flutter-release.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 | $0.00065 | $0.00701 |
| Opus 5 | $0.00032 | $0.00351 |
| Sonnet 5 | $0.00013 | $0.00140 |
| Haiku 4.5 | $0.00006 | $0.00070 |
Grade A, and why
flutter-release 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.
How it starts
The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Flutter Release
Full reference: template.md
Key rules
scripts/bump_version.sh <major|minor|patch>— bumpspubspec.yamlversion and build number atomically. Never edit by hand.- Android signing:
key.propertiesreferences keystore — never commit keystore or key.properties. Store in CI secrets. - iOS signing: use Fastlane Match for certificate management.
Matchfilepoints to a private certs repo. - All release builds must include
--obfuscate --split-debug-info=build/debug-info. Upload debug-info artifact to CI. - Shorebird code push:
shorebird release android/iosfor OTA updates that don't touch native code.shorebird patchfor hotfixes. - Firebase App Distribution: internal/QA builds. TestFlight: external beta. Play Store/App Store: production.
- Release checklist: bump version → tag
v*→ CIrelease.ymlruns → distribute → verify crash-free rate.
Fastlane lanes
| Platform | Lane | Target | What it does |
|---|---|---|---|
| Android | beta |
Firebase App Distribution | Build APK, upload to internal testers |
| Android | release |
Play Store (internal track) | Build AAB, upload to internal track |
| Android | promote |
Play Store (production) | Promote internal → production |
| iOS | certificates |
Fastlane Match | Sync signing certs (readonly in CI) |
| iOS | beta |
TestFlight | Build IPA, upload to TestFlight |
| iOS | release |
App Store Connect | Build IPA, upload for review |
Shorebird code push
OTA Dart-only updates — no store review needed for hotfixes.
# First release for a version
shorebird release android --flavor prod -t lib/main_prod.dart
shorebird release ios --flavor prod -t lib/main_prod.dart
# Push a patch (Dart code only, no native changes)
shorebird patch android --flavor prod -t lib/main_prod.dart
shorebird patch ios --flavor prod -t lib/main_prod.dart
Limitations: Dart code only, same Flutter SDK, patches typically 50KB–500KB.
Files
android/
key.properties ← signing config (gitignored)
app/build.gradle ← signingConfigs block
ios/
Gemfile ← fastlane gem deps
Fastfile ← lane definitions
Matchfile ← certificate repo
scripts/
bump_version.sh ← version + build number bump
.github/
workflows/
build.yml ← triggered on v* tags
release.yml ← sign + distribute
What ships with it
10 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- references/android_signing.md 2.4 KB
- references/app_identity.md 4.8 KB
- references/cd_workflow.md 4.0 KB
- references/fastlane_automation.md 3.5 KB
- references/ios_signing.md 1.6 KB
- references/obfuscation_and_build.md 1.9 KB
- references/release_checklist.md 3.0 KB
- references/shorebird_code_push.md 1.3 KB
- references/template.md 5.8 KB
- references/version_management.md 2.3 KB
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 · 69 lines · 65 tokens per session scan A 18aa8d813c54
flutter-release is a skill published in the GitHub repository yendangn/flutter-app-builder (5 stars, last pushed 2mo ago), licensed MIT. It adds 65 tokens to every session and 701 once invoked, about $0.0003 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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