nobrainer-decide

nobrainer-decide is a skill for Claude Code from nobrainer-tech/nobrainer-tech-skills. It costs 54 tokens per session (1,229 once invoked), scanned A, original, MIT.

A decision-making skill for choosing between technical, product, supplier, workflow or time-investment options. It produces one ranked choice with supporting evidence, confidence, warning signs and criteria for abandoning it.

In plain words
What is it for?
Use it to compare competing approaches, vendors, workflows or investments of development time and select a recommended option.
Why use it?
It helps when options have trade-offs, uncertainty, future lock-in or meaningful downside, instead of leaving the decision as an unstructured list of possibilities.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the nobrainer-tech-skills plugin — 15 skills shipped together

Good fit Use it to compare competing approaches, vendors, workflows or investments of development time and select a recommended option.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nobrainer-tech/nobrainer-tech-skills/nobrainer-decide
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 nobrainer-tech/nobrainer-tech-skills --skill nobrainer-decide
Clone the repo
git clone --depth 1 https://github.com/nobrainer-tech/nobrainer-tech-skills

Made for: Claude Code.

Or install nobrainer-tech-skills, the plugin that ships this one along with the rest of its 15 skills.

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 nobrainer-decide

README.md
[![agentmods](https://agentmods.dev/badge/skills/nobrainer-tech/nobrainer-tech-skills/nobrainer-decide/github.svg)](https://agentmods.dev/skills/nobrainer-tech/nobrainer-tech-skills/nobrainer-decide)
Your own site
<a href="https://agentmods.dev/skills/nobrainer-tech/nobrainer-tech-skills/nobrainer-decide"><img src="https://agentmods.dev/badge/skills/nobrainer-tech/nobrainer-tech-skills/nobrainer-decide/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 nobrainer-decide

Your own site · 80×15
<a href="https://agentmods.dev/skills/nobrainer-tech/nobrainer-tech-skills/nobrainer-decide"><img src="https://agentmods.dev/badge/skills/nobrainer-tech/nobrainer-tech-skills/nobrainer-decide.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,229 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.
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 $0.00054 $0.01229
Opus 5 $0.00027 $0.00615
Sonnet 5 $0.00011 $0.00246
Haiku 4.5 $0.00005 $0.00123

Measured 11d ago against content hash eefba77074f3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

nobrainer-decide 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 11d 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/nobrainer-decide/SKILL.md · 150 lines

How it starts

The opening of the file, as written. The whole thing — 150 lines — stays where its author put it; the contents beside it link to each section on GitHub.

NoBrainer Decide

Deliver one ranked decision with evidence, confidence, watchpoints and kill criteria. Do not hide behind several flavors of "it depends". This skill decides; it does not diagnose an unknown failure or execute the chosen option.

Use nobrainer-rca first when the unresolved question is causal. Use nobrainer-research when current external facts or a broader option space must be established before scoring.

Calibrate rigor

Do not run a panel for a factual lookup, an already-made choice, or an obvious reversible edit.

  • LIGHT: one explicit pass for reversible, low-cost choices with clear facts.
  • STANDARD: at least three independent perspectives for meaningful tradeoffs: option generation, scoring, and blind attack/cold review.
  • HIGH: at least six bounded independent runs for architecture, material cost, difficult rollback, public commitments, safety, or long lock-in. Separate two option generators, scorer, blind attacker, cold reviewer, and synthesizer.

Use fresh or deliberately bounded contexts. Independence means different evidence/roles and no inherited rationale, not merely several calls to the same prompt. When independent execution is unavailable, mark the analysis partial; do not claim a panel. Never hardcode a provider or model family into the protocol; select the strongest available capability appropriate to each role.

1. Frame the actual decision

Restate:

  • decision, owner, deadline and observable outcome;
  • baseline/status quo and what happens if nothing changes;
  • hard constraints, reversible vs irreversible effects, and owner gates;
  • evidence freshness and consequential unknowns.

Rewrite the problem once without project nouns. Ask "what system property makes this decision necessary?" until symptom and root cause are separated. If a candidate appears immediately, record it as an anchor to challenge, not the answer.

Ask at most one focused clarification round. Then either decide or identify the single missing owner choice/evidence that truly blocks a decision.

Read the full file on GitHub · 150 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. 11d ago First seen · 150 lines · 54 tokens per session scan A eefba77074f3

Subscribe to this mod's changes

nobrainer-decide is a skill published in the GitHub repository nobrainer-tech/nobrainer-tech-skills (5 stars, last pushed 6d ago), licensed MIT. It adds 54 tokens to every session and 1,229 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 2026-08-31.

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