symfony:api-platform-security

A guide for controlling who can access API Platform resources and operations in a Symfony application.

In plain words
What is it for?
Use it to add security expressions, voters, post-validation checks, and operation-level access controls.
Why use it?
It helps prevent unauthorized reading or changing of API data by keeping access rules explicit at the right stages.

Skill for Claude CodeCodex

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/dev-toolings/superpowers-symfony/api-platform-security
Any agent
npx skills add dev-toolings/superpowers-symfony --skill api-platform-security
Clone the repo
git clone --depth 1 https://github.com/dev-toolings/superpowers-symfony

Made for: Claude Code, Codex.

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 243 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 80% copy Near-identical to another mod 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 $0.00026 $0.00243
Opus 5 $0.00013 $0.00121
Sonnet 5 $0.00005 $0.00049
Haiku 4.5 $0.00003 $0.00024

Measured 2d ago against content hash 5b9cda954fa9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

symfony:api-platform-security 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.

Origin

This is a copy

80% identical to symfony:api-platform-dto-resources — 7 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/api-platform-security/SKILL.md · 43 lines

What it actually says

Api Platform Security (Symfony)

Use when

  • Designing or evolving API Platform contracts and operations.
  • Aligning serialization, validation, and security behavior.

Default workflow

  1. Define operation-level contract and payload boundaries.
  2. Implement resource/DTO/provider/processor changes with explicit mapping.
  3. Apply operation-specific validation and security constraints.
  4. Validate functional behavior across happy and negative paths.

Guardrails

  • Keep API contract explicit and version-aware.
  • Avoid exposing internal entity fields implicitly.
  • Prevent drift between docs and actual serialization.

Progressive disclosure

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

Output contract

  • API artifacts changed (resource/DTO/provider/processor).
  • Contract/security decisions and rationale.
  • Functional verification results.

References

  • reference.md
  • docs/complexity-tiers.md
Files

What ships with it

1 file 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. 2d ago First seen · 43 lines · 26 tokens per session scan A 5b9cda954fa9

Subscribe to this mod's changes

symfony:api-platform-security is a skill published in the GitHub repository dev-toolings/superpowers-symfony (206 stars, last pushed 27d ago), licensed MIT. It adds 26 tokens to every session and 243 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 80% identical to symfony:api-platform-dto-resources, differing in 7 lines, and is treated as a copy.

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