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.
npx agentmods add skills/cenconq25/claude-code-app-studio/dev-storynpx skills add cenconq25/claude-code-app-studio --skill dev-storygit clone --depth 1 https://github.com/cenconq25/claude-code-app-studioWrote 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.
[](https://agentmods.dev/skills/cenconq25/claude-code-app-studio/dev-story)<a href="https://agentmods.dev/skills/cenconq25/claude-code-app-studio/dev-story"><img src="https://agentmods.dev/badge/skills/cenconq25/claude-code-app-studio/dev-story.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00058 | $0.02874 |
| Opus 5 | $0.00029 | $0.01437 |
| Sonnet 5 | $0.00012 | $0.00575 |
| Haiku 4.5 | $0.00006 | $0.00287 |
Grade A, and why
dev-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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 336 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Dev Story
Turn a planned story into shipped code. This skill assembles every piece of context an implementing agent needs (story file, current PRD requirement, governing ADR, control manifest, framework conventions), routes the work to the right mobile specialist, and supervises implementation through to test.
Where this lives in the loop:
/qa-plan sprint -> define test bars before sprint starts
/story-readiness [path] -> green-light the story
/dev-story [path] -> THIS skill — implement + test
/code-review [files] -> review the diff
/story-done [path] -> verify ACs and close
Output: new or modified files in src/, plus a test file in tests/.
Phase 1: Locate the Story
Resolve the story path:
- If a path argument is supplied, read it directly.
- If no argument, open
production/session-state/active.mdand look for a current story reference. Confirm with the user before proceeding. - If neither path is available, glob
production/epics/**/story-*.mdand list every story whoseStatus:isReady. Ask the user to pick one.
If the story file does not exist, stop and tell the user to run
/create-stories for the relevant epic.
Phase 2: Assemble Full Context
Before writing a single line of code, validate that every required input exists. These reads are independent — issue them in parallel.
| Artifact | Path | Missing handling |
|---|---|---|
| TR registry | docs/architecture/tr-registry.yaml |
STOP — tell the user to run /create-epics. |
| Governing ADR | path from story ADR Governing Implementation: field |
STOP — tell the user to run /architecture-decision or fix the path. |
| Control manifest | docs/architecture/control-manifest.md |
WARN — continue but note that layer rules are unchecked. |
| Framework prefs | .claude/docs/technical-preferences.md |
WARN — framework routing falls back to "ask user". |
Mark the story BLOCKED in session state and abort if the TR registry or
governing ADR is missing.
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.
- yesterday First seen · 336 lines · 58 tokens per session scan A 91d5a53c2afe
dev-story is a skill published in the GitHub repository cenconq25/claude-code-app-studio (40 stars, last pushed 4mo ago), licensed MIT. It adds 58 tokens to every session and 2,874 once invoked, about $0.0003 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 2026-09-03.
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