A Flutter and Dart code-quality workflow that formats changed code and runs static analysis. Static analysis checks source code for likely errors without running the app.

Use it after Flutter or Dart changes, or when checking code style, to format files and run the project's Flutter analyzer with options for formatting-only or analysis-only checks.

It catches formatting problems and analyzer errors before code is considered ready for a pull request or release.

How strvcom/flutter-template configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to strvcom/flutter-template. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/strvcom/flutter-template/master/.agents/skills/lint-format/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/strvcom/flutter-template

Made for: Claude Code.

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/strvcom/flutter-template/lint-format/github.svg)](https://agentmods.dev/skills/strvcom/flutter-template/lint-format)

Your own site

<a href="https://agentmods.dev/skills/strvcom/flutter-template/lint-format"><img src="https://agentmods.dev/badge/skills/strvcom/flutter-template/lint-format/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/strvcom/flutter-template/lint-format"><img src="https://agentmods.dev/badge/skills/strvcom/flutter-template/lint-format.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 669 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.

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	$0.00056	$0.00669
Opus 5.5	$0.00022	$0.00268
Sonnet 5.5	$0.00011	$0.00134
Haiku 4.5	$0.00006	$0.00067

Measured 2mo ago against content hash 1e225339476b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lint-format 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/lint-format.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.agents/skills/lint-format/SKILL.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Flutter Template Lint and Format

MANDATORY

Run this skill after completing Flutter/Dart code changes unless a broader verification skill already ran equivalent checks. Never declare code work complete with known formatting or analyzer failures.

Read First

AGENTS.md
docs/PROJECT_GUIDELINES.md
analysis_options.yaml
pubspec.yaml

Usage

Run the wrapper script from the repo root:

.agents/skills/lint-format/scripts/lint-format.sh

The script auto-detects whether Flutter-relevant files changed. When relevant files changed, it formats changed Dart files and runs a project-wide analyzer pass.

Claude-discovered path:

.claude/skills/lint-format/scripts/lint-format.sh

Flags

Flag	What it does
`all` or `--all`	Format standard Dart source directories even if no changed files are detected, then analyze.
`--check`	Check formatting without writing changes, then analyze.
`--format-only`	Run only `fvm dart format`.
`--analyze-only`	Run only `fvm flutter analyze`.
`--help`	Show script usage.

What It Runs

Step	Command
Format	`fvm dart format <changed Dart files>`
Format check	`fvm dart format --set-exit-if-changed <changed Dart files>`
Analyze	`fvm flutter analyze`

The default formatter target is changed non-generated Dart files. It skips generated outputs such as *.g.dart, *.freezed.dart, *.gr.dart, and lib/assets/**.

If changed annotations, routes, DTOs, localization, or asset inputs require generated files, run make gen before this skill so the analyzer sees the current generated code.

Feedback Loop

Run the script.
If formatting changed files, inspect the diff.
If analyzer failures appear, fix the underlying source issue.
Run make gen when the failure points to stale generated code.
Re-run the script until all checks pass.
Only then declare work complete.

Prerequisites

FVM installed and configured for the repo.
Dependencies fetched with fvm flutter pub get.
Generated files are current when the change touched codegen inputs.

Read the full file on GitHub · 79 lines

Files

What ships with it

1 file 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.

scripts/lint-format.sh 5.0 KB runs code

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 · 79 lines · 56 tokens per session scan A 1e225339476b

Subscribe to this mod's changes

lint-format is a skill published in the GitHub repository strvcom/flutter-template (24 stars, last pushed 4mo ago), licensed MIT. It adds 56 tokens to every session and 669 once invoked, about $0.0002 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.

Debugging

lint-format next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
lint-formatstrvcom/flutter-template	Skill	24	4mo ago	MIT	A	56	Claude Code
systematic-debuggingopen-metadata/OpenMetadata	Skill	16k	yesterday	Apache-2.0	A	37	Claude Code
log-error-digestzebbern/claude-code-guide	Skill	4.7k	3d ago	MIT	A	71	Claude Code, Codex
cwv-optimizeradobe/skills	Skill	319	yesterday	Apache-2.0	A	112	Claude Code
ci-fixersipyourdrink-ltd/bernstein	Skill	1.2k	yesterday	Apache-2.0	A	15	Claude Code, Codex
incident-response-incident-responsermyndharis/antigravity-skills	Skill	1.9k	23d ago	MIT	A	36	Claude Code
triaging-web-analytics-supportPostHog/posthog	Skill	41k	yesterday	none	A	151	Claude Code, Codex

flutter-template: Skill for Claude Code