simplicity-guide

simplicity-guide is a skill for Claude Code, Codex from maludb/salvage-project. It costs 47 tokens per session (375 once invoked), scanned A, original, MIT.

A reference for choosing the simplest technology that meets a project's stated needs.

In plain words
What is it for?
It helps decide on data storage, frontend style, live updates, login systems, background jobs, and deployment.
Why use it?
It reduces unnecessary complexity by requiring a clear reason before moving to a more complicated option.

Skill for Claude CodeCodex

Part of the salvage plugin — 2 skills, 1 command shipped together

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/maludb/salvage-project/simplicity-guide
Any agent
npx skills add maludb/salvage-project --skill simplicity-guide
Clone the repo
git clone --depth 1 https://github.com/maludb/salvage-project

Made for: Claude Code, Codex.

Or install salvage, the plugin that ships this one along with the rest of its 2 skills, 1 command.

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 simplicity-guide

README.md
[![agentmods](https://agentmods.dev/badge/skills/maludb/salvage-project/simplicity-guide.svg)](https://agentmods.dev/skills/maludb/salvage-project/simplicity-guide)
Your own site
<a href="https://agentmods.dev/skills/maludb/salvage-project/simplicity-guide"><img src="https://agentmods.dev/badge/skills/maludb/salvage-project/simplicity-guide.svg" alt="Measured on agentmods" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 375 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 $0.00047 $0.00375
Opus 5 $0.00023 $0.00187
Sonnet 5 $0.00009 $0.00075
Haiku 4.5 $0.00005 $0.00038

Measured 5d ago against content hash d3e97e363b8f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

simplicity-guide 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 5d 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/simplicity-guide/SKILL.md · 34 lines

What it actually says

Simplicity Guide

The spine of opinions behind salvage. For every technical choice, start at the lowest rung of its ladder and climb ONLY when a written requirement forces it.

The ladders

Each fork has a reference file under references/, structured identically: one ## rung section per rung, each with Use when, Climb when, Cost, and a Rationale template.

  • Data store → references/data-store.md (flat files → SQLite → Postgres)
  • Frontend → references/frontend.md (server-rendered → HTMX → SPA)
  • Realtime → references/realtime.md (manual refresh → polling → SSE → websockets)
  • Auth → references/auth.md (framework sessions → library → third-party)
  • Jobs → references/jobs.md (inline → cron → queue)
  • Deploy → references/deploy.md (one box → containers → orchestration)

How to consult during the interview

For each relevant fork:

  1. Open the matching reference.
  2. Find the lowest rung whose Use when the project satisfies.
  3. Check the Climb when — climb one rung only if a stated requirement matches it. Never climb "to be safe."
  4. Weigh Cost against the developer's maintenance ceiling (from Stage 1).
  5. Record the decision in tech-stack.md by filling the rung's Rationale template, citing the rung (e.g. data-store.md#sqlite).
Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 34 lines · 47 tokens per session scan A d3e97e363b8f

Subscribe to this mod's changes

simplicity-guide is a skill published in the GitHub repository maludb/salvage-project (29 stars, last pushed 2mo ago), licensed MIT. It adds 47 tokens to every session and 375 once invoked, about $0.0002 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 2026-08-30.

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