spec-feature

A single workflow for planning a Flutter feature from an initial idea to implementation-ready tasks. Flutter is a framework for building apps from one shared codebase.

In plain words
What is it for?
Use it to define a new Flutter feature, decide how it should be built, and produce the tasks needed to implement it.
Why use it?
It removes the need to run separate planning steps for a product requirements document, a technical design, and a task list. It also guides clarification questions during planning.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/strvcom/flutter-template/spec-feature
Any agent
npx skills add strvcom/flutter-template --skill spec-feature
Clone the repo
git clone --depth 1 https://github.com/strvcom/flutter-template

Made for: Claude Code, Codex.

Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,209 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00071 $0.01209
Opus 5 $0.00036 $0.00605
Sonnet 5 $0.00014 $0.00242
Haiku 4.5 $0.00007 $0.00121

Measured 2d ago against content hash 83379ae0e709, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

spec-feature 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 2d 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.

.agents/skills/spec-feature/SKILL.md · 108 lines

How it starts

The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Flutter Template Spec Feature

Single entry point that runs the full feature specification pipeline from idea to implementation-ready tasks. It is designed to be invoked once; each sub-skill may pause for user input during its mandatory clarification steps — that is intentional and correct. After each sub-skill finishes, this orchestrator automatically invokes the next phase without requiring the user to type the next command.

Use this when you want to go from a feature idea directly to a full task breakdown, without manually running /prd, /techspec, and /tasks in sequence.

Prerequisites

  • No existing prd.md or techspec.md for this feature (or the user has confirmed it is safe to overwrite).
  • The user can answer clarification questions — both prd and techspec have mandatory interactive clarification steps that will pause the pipeline for user input.

If a PRD and tech spec already exist and are complete, use /start-job [feature-name] instead.

Arguments

Accepts an optional feature name. If provided, pass it to each sub-skill so they can pre-fill the folder name and skip asking. If omitted, the prd sub-skill will determine the feature name during its workflow.

Pipeline

Run each phase in order. Between phases, do NOT ask for user approval — the sub-skills themselves handle all necessary user interaction. If a phase fails hard (the sub-skill reports an unrecoverable error), stop and surface it to the user.

Critical orchestration rule: when a sub-skill returns control, do not treat its output as the end of your turn. You are still inside this /spec-feature orchestrator. Immediately invoke the next phase's skill in the same response. The only valid stops are: (a) a sub-skill's mandatory clarification pause (which is correct — wait for the user, then resume), (b) a hard failure, or (c) the Final Report after Phase 3.

Phase 1 — Product Requirements Document

Invoke the prd skill (pass the feature name argument if provided).

Read the full file on GitHub · 108 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.

  1. 2d ago First seen · 108 lines · 71 tokens per session scan A 83379ae0e709

Subscribe to this mod's changes

spec-feature is a skill published in the GitHub repository strvcom/flutter-template (24 stars, last pushed 2mo ago), licensed MIT. It adds 71 tokens to every session and 1,209 once invoked, about $0.0004 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 2026-08-30.

Related

Other skills, from other repositories

orca-emulator-android

Control an Android emulator / device from inside Orca using the orca CLI. Use for listing/booting AVDs, taps, swipes, typing, hardware buttons (incl. Back and Recents), rotation, app install/launch, runtime permissions, the accessibility tree, and logcat — driving a real adb-connected device or emulator.…

stablyai/orca · 104 tokens

speckit-analyze

Perform a non-destructive cross-artifact consistency and quality analysis across spec.md, plan.md, and tasks.md after task generation.

unoplatform/uno · 32 tokens

add-sample

Create a SamplesApp sample page with correct theming and attributes. Use when adding UI samples for controls.

unoplatform/uno · 21 tokens

mapping-to-snomed

Maps clinical concept spans extracted by OpenMed to SNOMED CT concepts through a USER-SUPPLIED terminology server (the user's own Ontoserver, Snowstorm, or UMLS/UTS), never a bundled vocabulary. Use when the user wants to code findings, disorders, procedures, body structures, or substances to SNOMED CT, run an ECL…

maziyarpanahi/openmed · 205 tokens

android-tombstone-symbolication

Symbolicate the .NET runtime frames in an Android tombstone file. Extracts BuildIds and PC offsets from the native backtrace, downloads debug symbols from the Microsoft symbol server, and runs llvm-symbolizer to produce function names with source file and line numbers. USE FOR triaging a .NET MAUI or Mono Android app…

dotnet/skills · 176 tokens

auditing-subgroup-fairness

Audit an OpenMed NER or de-identification model for performance disparities across demographic subgroups (sex, age band, race/ethnicity when available) using openmed.eval.fairnessreport. Use when the user wants per-subgroup recall and leakage, wants to check whether de-identification under-protects a group, wants to…

maziyarpanahi/openmed · 148 tokens