onboard

onboard is a command for Claude Code from sifxprime/kodelyth-ecc. It costs 31 tokens per session (601 once invoked), scanned A, original, MIT.

A codebase onboarding command that maps how a software project is organized, how its code runs, and where its documentation is incomplete.

In plain words
What is it for?
Use it to find important files, trace execution paths, understand architecture, identify documentation gaps, or focus on a specific module.
Why use it?
It reduces the time needed for a new developer or agent to understand an unfamiliar repository.

Command for Claude Code

Written for Claude Code: $ARGUMENTS substitution.

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 commands/sifxprime/kodelyth-ecc/onboard
Clone the repo
git clone --depth 1 https://github.com/sifxprime/kodelyth-ecc

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 onboard

README.md
[![agentmods](https://agentmods.dev/badge/commands/sifxprime/kodelyth-ecc/onboard.svg)](https://agentmods.dev/commands/sifxprime/kodelyth-ecc/onboard)
Your own site
<a href="https://agentmods.dev/commands/sifxprime/kodelyth-ecc/onboard"><img src="https://agentmods.dev/badge/commands/sifxprime/kodelyth-ecc/onboard.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 601 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 $0.00031 $0.00601
Opus 5 $0.00015 $0.00300
Sonnet 5 $0.00006 $0.00120
Haiku 4.5 $0.00003 $0.00060

Measured 2d ago against content hash 1542d99123ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

onboard 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.

commands/onboard.md · 73 lines

How it starts

The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/onboard — Parallel Codebase Onboarding

Three agents map your codebase simultaneously — architecture, execution paths, and documentation gaps. New to a repo? Get up to speed in 15 minutes.

What Gets Launched in Parallel

Agent Focus
code-explorer Traces execution paths, maps data flow, identifies key entry points and dependencies
architect Infers the architectural pattern, layers, module boundaries, and design decisions
doc-updater Identifies documentation gaps, stale docs, and missing READMEs or JSDoc

Usage

/onboard                             # full codebase overview
/onboard src/payments/               # focus on a specific module
/onboard --new-hire                  # adds kodelyth-advisor for getting-started guidance
/onboard --audit                     # adds code-reviewer for quality assessment

Report Format

## ONBOARDING REPORT

### Architecture (architect)
PATTERN:    [MVC / hexagonal / microservices / etc.]
LAYERS:     [how the code is organized]
KEY FILES:  [the 5–10 files you must understand first]
DECISIONS:  [notable architectural choices and why]

### Execution Paths (code-explorer)
ENTRY POINTS: [main flows — auth, data, API, jobs]
DATA FLOW:    [how data moves through the system]
DEPENDENCIES: [what talks to what]
GOTCHAS:      [non-obvious behaviours]

### Documentation Health (doc-updater)
MISSING:   [modules with no docs]
STALE:     [docs that no longer match the code]
GAPS:      [API endpoints with no documentation]

---
TIME TO PRODUCTIVE: estimated X days
FIRST 3 THINGS TO READ: [ordered list]

When to Use

  • First day on a new codebase
  • Reviewing a large PR in an unfamiliar module
  • Taking over a project from another team
  • Returning to code you haven't touched in 6+ months
  • Evaluating an open-source repo before adopting it

Execute Now

Invoking this command is confirmation to proceed. Execute immediately:

  1. Determine scope from $ARGUMENTS. Default: entire current project.
  2. Spawn all agents simultaneously with run_in_background: true:
    • code-explorer — execution path tracing and dependency mapping
    • architect — architectural pattern inference
    • doc-updater — documentation gap analysis
  3. Wait for all to complete.
  4. Aggregate into the Onboarding Report format above.
  5. End with: "Which area do you want to explore deeper first?"

Read the full file on GitHub · 73 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. 2d ago First seen · 73 lines · 31 tokens per session scan A 1542d99123ab

Subscribe to this mod's changes

onboard is a command published in the GitHub repository sifxprime/kodelyth-ecc (11 stars, last pushed 4d ago), licensed MIT. It adds 31 tokens to every session and 601 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 2026-09-03.