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project-onboarder

project-onboarder is an agent for Claude Code from VKirill/claude-lane-stack. It costs 28 tokens per session (1,614 once invoked), scanned A, original, MIT.

An agent that prepares a project for other coding agents by creating a structured map of its documentation, modules, public interfaces, tests, and important workflows.

In plain words
What is it for?
Use it during project onboarding to detect existing guidance, build documentation indexes and maps, and optionally create deployment or interface references.
Why use it?
It gives agents a shared, current description of the project before feature implementation begins.

Agent for Claude Code

Written for Claude Code: background in frontmatter. Also seen: model in frontmatter; mentions CLAUDE.md; positional $N argument.

Part of the lane-stack plugin — 62 skills, 4 commands, 13 agents, 1 MCP server shipped together

not rated 122repo changed 19d ago A scan 28 tokens original MIT

Good fit Use it during project onboarding to detect existing guidance, build documentation indexes and maps, and optionally create deployment or interface references.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/vkirill/claude-lane-stack/project-onboarder
View source ↗ VKirill/claude-lane-stack
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.

Clone the repo
git clone --depth 1 https://github.com/VKirill/claude-lane-stack

Made for: Claude Code.

Or install lane-stack, the plugin that ships this one along with the rest of its 62 skills, 4 commands, 13 agents, 1 MCP server.

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 project-onboarder

README.md
[![agentmods](https://agentmods.dev/badge/agents/vkirill/claude-lane-stack/project-onboarder/github.svg)](https://agentmods.dev/agents/vkirill/claude-lane-stack/project-onboarder)
Your own site
<a href="https://agentmods.dev/agents/vkirill/claude-lane-stack/project-onboarder"><img src="https://agentmods.dev/badge/agents/vkirill/claude-lane-stack/project-onboarder/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 project-onboarder

Your own site · 80×15
<a href="https://agentmods.dev/agents/vkirill/claude-lane-stack/project-onboarder"><img src="https://agentmods.dev/badge/agents/vkirill/claude-lane-stack/project-onboarder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,614 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 $0.00028 $0.01614
Opus 5.5 $0.00011 $0.00646
Sonnet 5.5 $0.00006 $0.00323
Haiku 4.5 $0.00003 $0.00161

Measured 19d ago against content hash 72cbe05fbe94, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

project-onboarder 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 19d 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/lane-stack/agents/project-onboarder.md · 123 lines

How it starts

The opening of the file, as written. The whole thing — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Lane Pilot projects: when Lane Pilot keeps the project docs (stages.docs.enabled: false in .agents/routing.profile.yaml, docs/index.md built by Lane Pilot), do not generate the docs/llm pack or write under docs/; keep only CLAUDE.md, AGENTS.md and llms.txt pointing to PROJECT.md → docs/index.md.

project-onboarder (canonical conveyor role)

Function name, not the adoc daytime writer. Implementation shell-out may be Codex CLI.

Model + effort

Source of truth = adoc → .agents/routing.profile.yaml → stages.onboard (provider, model, reasoning_effort, service_tier).

Depth fallbacks when unset:

Depth Codex model Effort
fast gpt-5.6-terra medium
deep gpt-5.6-sol high

service_tier: fast is Codex credit speed / Cursor -fast — independent of depth. Luna/max allowed when adoc sets them. No 5.5. No default xhigh.

LLM-first docs (mandatory)

Standards: AGENTS.md · Claude lean memory · llms.txt.

Prefer:

  • lean CLAUDE.md + AGENTS.md + root llms.txt
  • docs/llm/TAXONOMY.yaml — Diátaxis × load classifier (no tutorials)
  • docs/llm/API_SURFACE.yaml — all public APIs/CLIs/exports in one file
  • docs/llm/MODULE_MAP.yaml · TEST_INDEX.yaml
  • FLOWS · INDEX · MANIFEST (weekly)
  • docs/DESIGN.md if has_ui · docs/RUNBOOK.md if has_deploy

Never per-function markdown encyclopedias / recreate stale wiki essays.

Deep pipeline (gated)

Phase0 seed → Phase1 layout+TAXONOMY → Phase2 maps+TEST_INDEX → Phase3 flows
         → Phase4 passport (+ DESIGN/RUNBOOK) → Phase5 VALIDATION → report.md

Artifacts: phase1-layout.md, phase2-maps.md, … phase5-critique.md.

Inputs

PROJECT_CWD, optional ARTIFACT_DIR, FORCE, CODEX_MODEL, CODEX_REASONING,
ONBOARD_SCENARIO=minimal|full, ONBOARD_DEPTH=fast|deep,
ONBOARD_SERVICE_TIER=standard|fast

Read the full file on GitHub · 123 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. 19d ago Changed · +2 lines 72cbe05fbe94
  2. 1mo ago Changed · +5 lines 8dfeb63d1c27
  3. 1mo ago First seen · 116 lines · 28 tokens per session scan A 105c05cff605

Subscribe to this mod's changes

project-onboarder is an agent published in the GitHub repository VKirill/claude-lane-stack (122 stars, last pushed today), licensed MIT. It adds 28 tokens to every session and 1,614 once invoked, about $0.0001 per session on Opus 5.5. 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.

Building agentsClaude Codeagentic-codingai-agentsai-codingautomationclaude
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