runner-selection

runner-selection is a skill for Claude Code from dev-toolings/superpowers-symfony. It costs 26 tokens per session (430 once invoked), scanned A, original, MIT.

A Symfony project guide for choosing how commands should run, such as through Docker Compose, Symfony Docker with FrankenPHP, or the host machine. Symfony is a PHP web framework, and FrankenPHP is a web server that can run PHP applications.

In plain words
What is it for?
Use it to select a command runner, plan architectural or workflow changes, validate each checkpoint, and record remaining risks.
Why use it?
It reduces the risk of running commands in the wrong environment and sets checkpoints for medium or complex changes. It also helps keep changes within existing project patterns.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the superpowers-symfony plugin — 44 skills, 13 commands, 7 agents, 1 hook shipped together

Good fit Use it to select a command runner, plan architectural or workflow changes, validate each checkpoint, and record remaining risks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dev-toolings/superpowers-symfony/runner-selection
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 dev-toolings/superpowers-symfony --skill runner-selection
Clone the repo
git clone --depth 1 https://github.com/dev-toolings/superpowers-symfony

Made for: Claude Code.

Or install superpowers-symfony, the plugin that ships this one along with the rest of its 44 skills, 13 commands, 7 agents, 1 hook.

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 runner-selection

README.md
[![agentmods](https://agentmods.dev/badge/skills/dev-toolings/superpowers-symfony/runner-selection/github.svg)](https://agentmods.dev/skills/dev-toolings/superpowers-symfony/runner-selection)
Your own site
<a href="https://agentmods.dev/skills/dev-toolings/superpowers-symfony/runner-selection"><img src="https://agentmods.dev/badge/skills/dev-toolings/superpowers-symfony/runner-selection/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 runner-selection

Your own site · 80×15
<a href="https://agentmods.dev/skills/dev-toolings/superpowers-symfony/runner-selection"><img src="https://agentmods.dev/badge/skills/dev-toolings/superpowers-symfony/runner-selection.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 430 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00026 $0.00430
Opus 5.5 $0.00010 $0.00172
Sonnet 5.5 $0.00005 $0.00086
Haiku 4.5 $0.00003 $0.00043

Measured 22d ago against content hash a8c8488395e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

runner-selection 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 22d 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.

content/skills/runner-selection/SKILL.md · 43 lines

What it actually says

Runner Selection (Symfony)

Use when

  • Before the first PHP, console, composer or test command of a session.
  • A command fails with a missing PHP, extension or database that the container provides.
  • The project uses Docker Compose, Symfony Docker (FrankenPHP), DDEV or the host and the right prefix is unclear.
  • The containers may be stopped and the commands must not silently run on the host.

Default workflow

  1. Run the library's runtime context CLI with --format=markdown (or --format=env for scripts).
  2. Read the detected Docker type (ddev, symfony-docker, a Compose file, or none) and whether the containers are running.
  3. Use the prefixed console, composer and test commands it prints, such as docker compose exec php bin/console.
  4. If the containers are stopped, start them with the guidance it prints (ddev start or docker compose up -d), then run it again.
  5. Reuse the same prefix for every command in the session.

Guardrails

  • Never run the host php or composer when the project expects containers.
  • Do not guess the Compose service name: take it from the detected commands.
  • Without a Symfony application the CLI prints nothing: say so instead of inventing a runner.
  • Do not start or stop containers the task does not need.

Progressive disclosure

  • Use this file for execution posture and risk controls.
  • Open references when deep implementation details are needed.

Output contract

  • The detected environment (Docker type, running state, test framework).
  • The prefixed console, composer and test commands for this session.

References

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. 22d ago Changed · +2 lines a8c8488395e5
  2. 1mo ago Changed · +2 lines · -3 tokens per session fcb2ae064153
  3. 1mo ago First seen · 39 lines · 29 tokens per session scan A ed525ed1f287

Subscribe to this mod's changes

runner-selection is a skill published in the GitHub repository dev-toolings/superpowers-symfony (227 stars, last pushed 22d ago), licensed MIT. It adds 26 tokens to every session and 430 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.