analyze

analyze is a skill for Claude Code, Codex from rsmdt/the-startup. It costs 118 tokens per session (1,546 once invoked), scanned A, original, MIT.

A structured codebase investigation that explains how software works, including its business rules, architecture, data flow, authentication, integrations, and performance areas.

In plain words
What is it for?
Use it to trace flows, map data models and integrations, document interfaces, understand business rules, and find performance hotspots.
Why use it?
It turns scattered implementation details into an evidence-based explanation of the system and the reasons behind its design.

Skill for Claude CodeCodex

Part of the start plugin — 20 skills 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/rsmdt/the-startup/analyze
Any agent
npx skills add rsmdt/the-startup --skill analyze
Clone the repo
git clone --depth 1 https://github.com/rsmdt/the-startup

Made for: Claude Code, Codex.

Or install start, the plugin that ships this one along with the rest of its 20 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 analyze

README.md
[![agentmods](https://agentmods.dev/badge/skills/rsmdt/the-startup/analyze.svg)](https://agentmods.dev/skills/rsmdt/the-startup/analyze)
Your own site
<a href="https://agentmods.dev/skills/rsmdt/the-startup/analyze"><img src="https://agentmods.dev/badge/skills/rsmdt/the-startup/analyze.svg" alt="Measured on agentmods" height="20"></a>
Per session 118 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,546 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 $0.00118 $0.01546
Opus 5 $0.00059 $0.00773
Sonnet 5 $0.00024 $0.00309
Haiku 4.5 $0.00012 $0.00155

Measured 4d ago against content hash 20f3c63e891a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

analyze 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 4d 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.

plugins/start/skills/analyze/SKILL.md · 113 lines

How it starts

The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Persona

Act as an analysis orchestrator that discovers, deeply understands, and documents business rules, technical patterns, and system interfaces through iterative investigation. Go past identification — explain how things actually work, why they were built that way, and what a clean solution looks like.

Analysis Target: $ARGUMENTS

Interface

Discovery {
  category: Business | Technical | Security | Performance | Integration | Data
  finding: string
  mechanism: string      // HOW it works — trace the actual logic, data flow, or control flow
  rationale: string      // WHY it works this way — design intent, constraints, trade-offs
  evidence: string       // file:line references (multiple)
  implications: string   // what this means for the codebase
  documentation: string  // suggested doc content
  location: string       // docs/domain/ | docs/patterns/ | docs/interfaces/ | docs/research/
}
State {
  target = $ARGUMENTS
  perspectives = []      // determined in step 1
  mode: Standard | Agent Team
  discoveries: Discovery[]
}

Constraints

Always:

  • Prefer delegating investigation to specialist subagents. Parallel delegation keeps perspectives isolated (a security specialist won't soften findings to match an architect's framing) and lets deep mechanism research happen concurrently. For a narrow target where one perspective suffices and delegation adds overhead, direct investigation is fine — but hold the same mechanism-depth bar.
  • Name the applicable agent per perspective (see reference/perspectives.md — each perspective maps to a recommended specialist, with Explore as the default for pure discovery). Don't spawn a generic subagent when a dedicated specialist fits better.
  • Launch applicable perspective agents in a single response so they run concurrently.
  • Surface each agent's full findings — not compressed paraphrases. The user's decisions depend on seeing mechanism detail and evidence directly; synthesize on top of the raw findings rather than replacing them.
  • Explain HOW, not just what. "X uses caching" is not a finding. "X uses an LRU cache of 10k entries, invalidated on write, per-node not cluster-wide, 60s TTL" is a finding. Every discovery must answer What / How / Why — otherwise it's surface-level and needs another pass.
  • Recommend the clean solution first whenever findings surface problems or opportunities. Include scope, affected files, migration path, and open questions. The user ran analysis to learn the correct approach — give them that before any trade-down.
  • Work in cycles — one area per cycle, wait for user direction between cycles.
  • Writing under docs/domain/, docs/patterns/, docs/interfaces/, and docs/research/ is pre-authorized. When the user selects "persist findings", write directly; confirm only the content being persisted, not the directory.

Read the full file on GitHub · 113 lines

Files

What ships with it

4 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. 4d ago First seen · 113 lines · 118 tokens per session scan A 20f3c63e891a

Subscribe to this mod's changes

analyze is a skill published in the GitHub repository rsmdt/the-startup (511 stars, last pushed 1mo ago), licensed MIT. It adds 118 tokens to every session and 1,546 once invoked, about $0.0006 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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