smartest-project-addition

smartest-project-addition is a skill for Claude Code, Codex from pekral/cursor-rules. It costs 23 tokens per session (333 once invoked), scanned A, original, MIT.

A project-planning workflow that selects exactly one concrete, high-impact addition for a software project.

In plain words
What is it for?
Use it to inspect a repository, compare possible additions, recommend one, and outline implementation, validation, rollout, and rollback.
Why use it?
It helps turn broad improvement ideas into one prioritized recommendation based on value, effort, risk, and reversibility.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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 skills/pekral/cursor-rules/smartest-project-addition
Any agent
npx skills add pekral/cursor-rules --skill smartest-project-addition
Clone the repo
git clone --depth 1 https://github.com/pekral/cursor-rules

Made for: Claude Code, Codex.

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 smartest-project-addition

README.md
[![agentmods](https://agentmods.dev/badge/skills/pekral/cursor-rules/smartest-project-addition.svg)](https://agentmods.dev/skills/pekral/cursor-rules/smartest-project-addition)
Your own site
<a href="https://agentmods.dev/skills/pekral/cursor-rules/smartest-project-addition"><img src="https://agentmods.dev/badge/skills/pekral/cursor-rules/smartest-project-addition.svg" alt="Measured on agentmods" height="20"></a>
Per session 23 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 333 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 $0.00023 $0.00333
Opus 5 $0.00012 $0.00167
Sonnet 5 $0.00005 $0.00067
Haiku 4.5 $0.00002 $0.00033

Measured 2d ago against content hash 473e9a97e828, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

smartest-project-addition 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.

skills/smartest-project-addition/SKILL.md · 42 lines

What it actually says

Constraints

  • Apply @rules/php/core-standards.mdc only once it is established that the project is a PHP project (PHP stack in composer.json) and the proposed addition touches PHP code — skip it for a non-PHP project or a non-code proposal; do not load the PHP standards when the addition does not touch PHP.
  • Recommend exactly one addition
  • Do not include alternative proposals in the final answer
  • Do not implement code unless explicitly requested

Use when

  • You want the single most valuable next addition to the project
  • You want a concrete recommendation, not a list of ideas

Required approach

  • Inspect the current repository and identify the strongest leverage point across architecture, DX, reliability, performance, security, or delivery speed
  • Evaluate candidate ideas by:
    • impact
    • implementation complexity
    • risk
    • reversibility
  • Select exactly one proposal with the best overall leverage

Output

Provide:

  • a concise proposal statement
  • why this is the best next addition now
  • expected business and technical benefits
  • key risks and mitigations
  • smallest safe implementation plan
  • test/validation strategy
  • rollout and rollback notes

Done when

  • The recommendation is concrete, measurable, and actionable
  • The final answer contains exactly one proposal
  • The proposal is justified by impact relative to complexity and risk
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 · 42 lines · 23 tokens per session scan A 473e9a97e828

Subscribe to this mod's changes

smartest-project-addition is a skill published in the GitHub repository pekral/cursor-rules (6 stars, last pushed 5d ago), licensed MIT. It adds 23 tokens to every session and 333 once invoked, about $0.0001 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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