speckit.auto

A command that runs four stages of Spec-Driven Development: writing the requirements, planning the work, creating tasks, and implementing them. Spec-Driven Development means defining what should be built before coding it.

In plain words
What is it for?
Use it to start a feature from a required description and automatically move through specification, planning, task creation, and implementation.
Why use it?
It coordinates the full workflow in order, so each stage finishes before the next begins.

Command for Cursor

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 commands/visactor/vchart/speckit.auto
Clone the repo
git clone --depth 1 https://github.com/VisActor/VChart

Made for: Cursor.

Per session 31 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,042 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 $0.00031 $0.01042
Opus 5 $0.00015 $0.00521
Sonnet 5 $0.00006 $0.00208
Haiku 4.5 $0.00003 $0.00104

Measured 2d ago against content hash 2420bb0e1294, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

speckit.auto 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.

.cursor/commands/speckit.auto.md · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

User Input

$ARGUMENTS

Outline

This command orchestrates the full Spec-Driven Development (SDD) lifecycle, executing each of the four core phases in a strict, sequential, and non-interactive manner. It ensures that each phase completes before the next one begins, mirroring the exact semantics of executing each /speckit.* command individually.

Execution is strictly sequential. Parallel execution of phases is prohibited.

Pre-flight Check

  1. Validate User Input:
    • If $ARGUMENTS is empty, the process will halt with an error. The initial feature description is mandatory to start the specify phase.

Phase 1: Specify (/speckit.specify)

  • Action: The workflow begins by invoking /speckit.specify with the provided $ARGUMENTS. This is the single entry point for user input.
  • Process: This phase will automatically generate a feature branch, create the spec.md file, and run all associated validation and checklist generation steps as defined in the speckit.specify command.
  • Handoff: Upon successful completion, it will automatically trigger the plan phase.
  • Output Report:
    • "Phase 1 (Specify) completed."
    • BRANCH_NAME: [The generated feature branch name]
    • SPEC_FILE: [Path to the generated spec.md file]

Phase 2: Plan (/speckit.plan)

  • Action: Triggered automatically after specify completes. It requires no additional arguments and operates on the context established by the previous phase.
  • Process: This phase will generate the plan.md and all its associated design artifacts (e.g., research.md, data-model.md, contracts/). It strictly follows the "Phase 0" and "Phase 1" steps outlined in the speckit.plan command.
  • Handoff: Upon successful completion, it will automatically trigger the tasks phase.
  • Output Report:
    • "Phase 2 (Plan) completed."
    • IMPL_PLAN: [Path to the generated plan.md file]
    • DERIVED_ARTIFACTS: [List of paths to other generated files like research.md]

Read the full file on GitHub · 68 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 · 68 lines · 0 tokens per session scan A 2420bb0e1294

Subscribe to this mod's changes

speckit.auto is a command published in the GitHub repository VisActor/VChart (1,834 stars, last pushed 7d ago), licensed MIT. It adds 31 tokens to every session and 1,042 once invoked, about $0.0002 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.