validate-next-story

validate-next-story is a command for Claude Code from gonewx/TaskSentinel. It costs 0 tokens per session (1,269 once invoked), scanned A, original, MIT.

A workflow for checking whether a proposed development story is complete and ready to implement. A story is a small piece of planned product work, and the workflow checks it against project requirements, architecture documents, and templates.

In plain words
What is it for?
For validating a next-story draft, its parent epic, acceptance criteria, technical context, and required documentation. It helps decide whether the story is ready for implementation.
Why use it?
It finds missing details and inconsistencies before coding begins, reducing the chance that a developer must guess what to build. It stops when the required BMad configuration file is missing.

Command for Claude Code

Written for Claude Code: installed under .claude/.

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/gonewx/tasksentinel/validate-next-story
Clone the repo
git clone --depth 1 https://github.com/gonewx/TaskSentinel

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.

agentmods badge for validate-next-story

README.md
[![agentmods](https://agentmods.dev/badge/commands/gonewx/tasksentinel/validate-next-story.svg)](https://agentmods.dev/commands/gonewx/tasksentinel/validate-next-story)
Your own site
<a href="https://agentmods.dev/commands/gonewx/tasksentinel/validate-next-story"><img src="https://agentmods.dev/badge/commands/gonewx/tasksentinel/validate-next-story.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,269 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 5.1 $0.00000 $0.01269
Opus 5 $0.00000 $0.00634
Sonnet 5 $0.00000 $0.00254
Haiku 4.5 $0.00000 $0.00127

Measured 6d ago against content hash 614b6e14d575, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

validate-next-story 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 6d 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.

Origin

Copies of this mod

3 near-identical copies found in the catalogue:

.claude/commands/BMad/tasks/validate-next-story.md · 139 lines

How it starts

The opening of the file, as written. The whole thing — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/validate-next-story Task

When this command is used, execute the following task:

Validate Next Story Task

Purpose

To comprehensively validate a story draft before implementation begins, ensuring it is complete, accurate, and provides sufficient context for successful development. This task identifies issues and gaps that need to be addressed, preventing hallucinations and ensuring implementation readiness.

SEQUENTIAL Task Execution (Do not proceed until current Task is complete)

0. Load Core Configuration and Inputs

  • Load .bmad-core/core-config.yaml
  • If the file does not exist, HALT and inform the user: "core-config.yaml not found. This file is required for story validation."
  • Extract key configurations: devStoryLocation, prd.*, architecture.*
  • Identify and load the following inputs:
    • Story file: The drafted story to validate (provided by user or discovered in devStoryLocation)
    • Parent epic: The epic containing this story's requirements
    • Architecture documents: Based on configuration (sharded or monolithic)
    • Story template: bmad-core/templates/story-tmpl.md for completeness validation

1. Template Completeness Validation

  • Load bmad-core/templates/story-tmpl.md and extract all section headings from the template
  • Missing sections check: Compare story sections against template sections to verify all required sections are present
  • Placeholder validation: Ensure no template placeholders remain unfilled (e.g., {{EpicNum}}, {{role}}, _TBD_)
  • Agent section verification: Confirm all sections from template exist for future agent use
  • Structure compliance: Verify story follows template structure and formatting

2. File Structure and Source Tree Validation

  • File paths clarity: Are new/existing files to be created/modified clearly specified?
  • Source tree relevance: Is relevant project structure included in Dev Notes?
  • Directory structure: Are new directories/components properly located according to project structure?
  • File creation sequence: Do tasks specify where files should be created in logical order?
  • Path accuracy: Are file paths consistent with project structure from architecture docs?

Read the full file on GitHub · 139 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. 6d ago First seen · 139 lines · 0 tokens per session scan A 614b6e14d575

Subscribe to this mod's changes

validate-next-story is a command published in the GitHub repository gonewx/TaskSentinel (18 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,269 tokens. 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.