execute-task

A task-execution workflow for implementing a software task from a Markdown task file or a written description. It checks that the task has a clear scope, success criteria, and verification plan before work begins.

In plain words
What is it for?
Use it to implement a documented task or build a feature described in plain language, including planning and verification.
Why use it?
It turns vague or incomplete requests into an actionable plan and includes checks for whether the result works.

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/jgamaraalv/ts-dev-kit/execute-task
Any agent
npx skills add jgamaraalv/ts-dev-kit --skill execute-task
Clone the repo
git clone --depth 1 https://github.com/jgamaraalv/ts-dev-kit

Made for: Claude Code, Codex.

Per session 119 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,623 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00119 $0.06623
Opus 5 $0.00060 $0.03312
Sonnet 5 $0.00024 $0.01325
Haiku 4.5 $0.00012 $0.00662

Measured 2d ago against content hash a3f965cc7baf, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

execute-task scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

4. **Backend tasks:** execute requests to affected endpoints (via curl or available API MCPs) and record response status, payload shape, and timing.
skills/execute-task/SKILL.md · 477 lines

How it starts

The opening of the file, as written. The whole thing — 477 lines — stays where its author put it; the contents beside it link to each section on GitHub.

<trigger_examples>

  • "Execute TASK_02"
  • "Implement docs/features/search/TASK_01.md"
  • "Run this task"
  • "Execute the task"
  • "Implement the search feature"
  • "Build the user creation flow end-to-end"
  • "Add the notifications endpoint to the API" </trigger_examples>

<phase_0_intake> Resolve the input and ensure the task document is complete before executing.

Step 1 — Determine input type:

  • If $ARGUMENTS looks like a file path (ends in .md, or starts with /, ./, docs/, or contains a directory separator): read the file.
  • Otherwise: treat it as a free-form task description — skip to Step 3.

Step 2 — Validate the task document: A task document is ready for execution when it contains ALL of:

  • ## Scope — Files with at least one file entry
  • ## Success Criteria with at least one testable criterion
  • ## Verification Plan with baseline and post-change checks

If all required sections are present → proceed to phase 1.

Step 3 — Generate the task document: If the document is missing any required section, OR the input was a free-form description:

  1. Inform the user:

    Task document incomplete. Generating a structured task document via /generate-tasks before proceeding.

  2. Call Skill(skill: "generate-tasks") passing the original input as context.
  3. After generation, note the path of the saved TASK_N.md file.
  4. Read the generated file and confirm all required sections are present.
  5. Resume execution using the generated document — continue to phase 1. </phase_0_intake>

<phase_1_context_analysis> Before writing any code, build a mental model of the task scope.

  1. Read the resolved task document fully (path determined in phase 0).
  2. Read the project CLAUDE.md and root package.json — understand project structure, available commands, and dependency graph.
  3. Search the codebase for existing patterns — use Grep/Glob to find related files, similar implementations, and reusable code relevant to the task's file scope.
  4. Identify the affected packages/directories from the task's "Scope — Files" section. </phase_1_context_analysis>

<phase_2_role_assignment> Determine the full execution context: role persona, domain area, domain technologies, project context, required skills, and available MCPs.

<domain_areas> Map the task to one or more domain areas AND sub-areas. Sub-areas determine the specialist agent type and skill set.

Backend

Sub-area Agent type When Key skills
Database database-expert Schema design, migrations, complex queries, indexes drizzle-pg, postgresql
Endpoints api-builder Routes, validation, handlers, API contracts fastify-best-practices
Queues general-purpose Job processing, workers, schedulers bullmq, ioredis
Security security-scanner Auth flows, RBAC, input sanitization owasp-security-review

Frontend

Sub-area Agent type When Key skills
Components react-specialist Component architecture, hooks, state management, composition react-best-practices, composition-patterns
Pages/routing general-purpose Pages, layouts, data fetching, RSC boundaries nextjs-best-practices
UI/UX ux-optimizer User flows, form UX, friction reduction ui-ux-guidelines
Accessibility accessibility-pro WCAG compliance, keyboard nav, screen readers
Performance performance-engineer Core Web Vitals, bundle size, re-renders react-best-practices

Shared packagestypescript-pro or general-purpose (shared types, schemas, utilities)

Cross-cutting specialists (use alongside any domain)

Agent type When
test-generator Writing test suites, improving coverage
debugger Investigating errors, stack traces
docker-expert Dockerfiles, compose, container config
code-reviewer Post-implementation review
playwright-expert E2E browser tests

Read the full file on GitHub · 477 lines

Files

What ships with it

3 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.

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 · 477 lines · 119 tokens per session scan A a3f965cc7baf

Subscribe to this mod's changes

execute-task is a skill published in the GitHub repository jgamaraalv/ts-dev-kit (15 stars, last pushed 6mo ago), licensed MIT. It adds 119 tokens to every session and 6,623 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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