start

start is a skill for Claude Code, Codex from adonai-labs/agent-runway. It costs 90 tokens per session (2,362 once invoked), scanned A, original, MIT.

An entry point that interprets a development request and directs it to the most suitable workflow. It loads relevant project context and prepares the next step for the developer.

In plain words
What is it for?
Use it to begin feature work, bug fixes, infrastructure tasks, refactoring, autonomous implementation, or other development requests.
Why use it?
It helps when the work is vague, technical, or supplied as a ticket. It clarifies what kind of work is being requested before implementation starts.

Skill for Claude CodeCodex

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

Good fit Use it to begin feature work, bug fixes, infrastructure tasks, refactoring, autonomous implementation, or other development requests.

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Install with agentmods
npx agentmods add skills/adonai-labs/agent-runway/start
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.

Any agent
npx skills add adonai-labs/agent-runway --skill start
Clone the repo
git clone --depth 1 https://github.com/adonai-labs/agent-runway

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 start

README.md
[![agentmods](https://agentmods.dev/badge/skills/adonai-labs/agent-runway/start/github.svg)](https://agentmods.dev/skills/adonai-labs/agent-runway/start)
Your own site
<a href="https://agentmods.dev/skills/adonai-labs/agent-runway/start"><img src="https://agentmods.dev/badge/skills/adonai-labs/agent-runway/start/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 start

Your own site · 80×15
<a href="https://agentmods.dev/skills/adonai-labs/agent-runway/start"><img src="https://agentmods.dev/badge/skills/adonai-labs/agent-runway/start.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 90 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,362 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 $0.00090 $0.02362
Opus 5 $0.00045 $0.01181
Sonnet 5 $0.00018 $0.00472
Haiku 4.5 $0.00009 $0.00236

Measured 8d ago against content hash e2fbdd0daf4f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

start 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 8d 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.

src/core/skills/start/SKILL.md · 257 lines

How it starts

The opening of the file, as written. The whole thing — 257 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Start

Invoke Command

/start <description of what you want to do>

Examples:

  • /start I need to add email notifications when an order is placed
  • /start there's a bug where users can see other users' orders
  • /start we need to provision a new Azure Service Bus namespace
  • /start the payment service is getting too complex, it needs cleaning up
  • /start PROJ-501

Not sure if this is the right skill? It always is — /start figures out where to go from here.


What this skill does

Takes any description of work — vague, technical, ticket-based, or in plain language — and produces:

  1. A clear classification of what kind of work this is
  2. The right skill to use and why
  3. Relevant project context pre-loaded for that skill
  4. A ready-to-go handoff so the developer can proceed immediately

Workflow — 3 Phases


Phase 1 — Understand the intent

Read the developer's description carefully. Identify the primary intent:

Intent signal Likely category
"add", "build", "implement", "create", "new endpoint/feature" Implementation
"autonomous", "without supervision", "run unattended", "low supervision" Autonomous implementation
"fix", "broken", "not working", "bug", "error", "wrong behaviour" Bug fix
"review", "check this", "audit", "PR review" Code review
"checkpoint", "save state", "handoff", "pause here", "resume later" Checkpoint
"safety check", "risk check", "is this safe", "before I continue" Safety check
"clean up", "refactor", "simplify", "too complex", "hard to read" Refactor
"infrastructure", "provision", "Bicep", "Terraform", "Azure resource" IaC
"design", "should I use", "trade-off", "architecture decision", "ADR" Architecture
"validate", "is this ticket ready", "check this story" Ticket validation
"product-ready", "PO review", "business readiness", "evaluate this spec as PO" PO evaluation
Jira ticket key (e.g. PROJ-123) or path to .md file Ticket validation → then re-classify

Read the full file on GitHub · 257 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. 8d ago First seen · 257 lines · 90 tokens per session scan A e2fbdd0daf4f

Subscribe to this mod's changes

start is a skill published in the GitHub repository adonai-labs/agent-runway (2 stars, last pushed 18d ago), licensed MIT. It adds 90 tokens to every session and 2,362 once invoked, about $0.0005 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 2026-08-31.

Related

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