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flows-app-brief

flows-app-brief is a skill for Claude Code from cognitedata/builder-skills. It costs 114 tokens per session (2,975 once invoked), scanned A, original, Apache-2.0.

A guided first step for certifying Cognite Flows apps. It asks about the app’s name, users, problem, value, and design, then writes an App-Brief.md file at the repository root.

In plain words
What is it for?
Use it immediately after creating a Flows app to define its purpose and design intent before building it.
Why use it?
It turns an early, vague app idea into a written brief before implementation and later code and design reviews.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: reads .claude/ paths.

not rated 6repo changed 1mo ago A scan Socket: passSnyk: passSkillSpector: warn 114 tokens original Apache-2.0

Good fit Use it immediately after creating a Flows app to define its purpose and design intent before building it.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cognitedata/builder-skills/flows-app-brief
View source ↗ cognitedata/builder-skills
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.

Any agent
npx skills add cognitedata/builder-skills --skill flows-app-brief
Clone the repo
git clone --depth 1 https://github.com/cognitedata/builder-skills

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 flows-app-brief

README.md
[![agentmods](https://agentmods.dev/badge/skills/cognitedata/builder-skills/flows-app-brief/github.svg)](https://agentmods.dev/skills/cognitedata/builder-skills/flows-app-brief)
Your own site
<a href="https://agentmods.dev/skills/cognitedata/builder-skills/flows-app-brief"><img src="https://agentmods.dev/badge/skills/cognitedata/builder-skills/flows-app-brief/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for flows-app-brief

Your own site · 80×15
<a href="https://agentmods.dev/skills/cognitedata/builder-skills/flows-app-brief"><img src="https://agentmods.dev/badge/skills/cognitedata/builder-skills/flows-app-brief.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 114 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,975 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • Socket pass 30 Sept 2026
  • Snyk pass 30 Sept 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 4 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 7
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 29
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 33
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium Agent Snooping · line 34
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
How audits are shown
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 $0.00114 $0.02975
Opus 5.5 $0.00046 $0.01190
Sonnet 5.5 $0.00023 $0.00595
Haiku 4.5 $0.00011 $0.00298

Measured 1mo ago against content hash f8c3ea65a42a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

flows-app-brief 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 1mo 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.

skills/flows-app-brief/SKILL.md · 230 lines

How it starts

The opening of the file, as written. The whole thing — 230 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Flows App Brief (Certification Coach)

This is step 1 of the Flows app certification flow:

flows-app-brief (this skill)  →  build  →  flows-code-review  →  flows-design-review  →  flows-external-app-submit

Your job is to act as a certification coach for Cognite Builders: ask focused questions, challenge vague answers, and produce a complete App-Brief.md at the workspace root.

If they arrived from Fusion Custom apps Start building, follow start-flows-app so https://localhost is up first. Do not dump an empty App-Brief template as the opening move. Write App-Brief.md after the SME conversation.

Preflight — Refresh review skills

Before doing anything else, ask (via AskQuestion):

"Pull the latest review skills before we start?"

  • Pull — npx @cognite/cli@latest apps skills pull
  • Skip — use what's already in .agents/skills/ / .claude/skills/

On Pull:

  1. Run Bash npx @cognite/cli@latest apps skills pull.
  2. Glob '**/skills/correctness-and-error-handling/SKILL.md' as a sentinel.
  3. Match found → continue.
  4. Zero matches → ask: "Skills pull didn't succeed — Retry / Skip and continue (review quality may degrade) / Stop."

On Skip: continue immediately.

Operating rules

  • Coaching from scratch is one question at a time. When you have no pre-scanned draft for a coached field and must elicit the answer fresh, use a single-question AskQuestion call. Keep your prose short between questions.
  • Confirming pre-scanned drafts can be batched. When Step 0 produced strong drafts (e.g. from specs/<NNN>/spec.md), it is fine and encouraged to present them in a single AskQuestion call with three options each: (a) accept the draft, (b) accept a clearly-labeled refined variant, (c) "I'll write my own". This is the fast path and should be the default when drafts exist.
  • When the user gives a confident, specific answer, save it immediately and move on. Restate the captured answer in one sentence so the user can see what you stored.
  • When an answer is vague, challenge it before saving using the rubric below. Re-ask until specific.
  • Never invent answers on the user's behalf. If the user explicitly says they do not know, capture that as an honest assumption (the field allows this).
  • If App-Brief.md already exists at the workspace root, parse its YAML frontmatter, show the current values, and only re-coach the fields the user wants to revise.

Read the full file on GitHub · 230 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. 1mo ago Changed · +3 lines · +10 tokens per session f8c3ea65a42a
  2. 2mo ago First seen · 227 lines · 104 tokens per session scan A 8ae7f2964051

Subscribe to this mod's changes

flows-app-brief is a skill published in the GitHub repository cognitedata/builder-skills (6 stars, last pushed yesterday), licensed Apache-2.0. It adds 114 tokens to every session and 2,975 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-08-31.

Planningai-low-risk
Related

flows-app-brief compared with skills from other repositories

flows-app-brief next to 6 skills from other repositories
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playwright-climicrosoft/playwrightSkill99ktodayApache-2.0A19Claude Code
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systematic-debuggingobra/superpowersSkill314k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code
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