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.
npx agentmods add skills/gerard-labs/superpowers-api-platform/api-platform-dto-resourcesnpx skills add gerard-labs/superpowers-api-platform --skill api-platform-dto-resourcesgit clone --depth 1 https://github.com/gerard-labs/superpowers-api-platformWrote 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.
[](https://agentmods.dev/skills/gerard-labs/superpowers-api-platform/api-platform-dto-resources)<a href="https://agentmods.dev/skills/gerard-labs/superpowers-api-platform/api-platform-dto-resources"><img src="https://agentmods.dev/badge/skills/gerard-labs/superpowers-api-platform/api-platform-dto-resources.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00130 | $0.00578 |
| Opus 5 | $0.00065 | $0.00289 |
| Sonnet 5 | $0.00026 | $0.00116 |
| Haiku 4.5 | $0.00013 | $0.00058 |
Grade A, and why
api-platform-dto-resources 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 5d 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.
What it actually says
API Platform 4.3 — Input/Output DTOs (+ Object Mapper 4.3)
Use when
- The API contract should not be a one-to-one reflection of the Doctrine entity.
- Validation rules differ per operation (
CreateOrderInputvsUpdateOrderInput). - The contract needs IRI-only relations and
BackedEnumstatuses. - A simple CRUD could benefit from the new Symfony Object Mapper 4.3 to skip Provider/Processor boilerplate.
Default workflow
- Decide: pure DTO (full Provider/Processor) or Object Mapper 4.3 (when mapping is mechanical).
- Define
InputandOutputDTOs asfinal readonlywith Symfony validator attributes. - Wire them on the operation (
input:,output:,processor:/provider:) — or annotate with#[Map]if using Object Mapper. - Test the contract: 201 with the right shape, 422 on invalid payload, IRI resolution.
Guardrails
- DTOs hold no business logic — just validated transport.
- Always type relations as Resources (
Customer $customer), never scalar IDs. - Use
BackedEnumfor any status / type / category — never freestring. - Object Mapper 4.3 is for mechanical mapping only. Persistence logic, aggregation, side effects → keep an explicit Processor.
Progressive disclosure
SKILL.mdlists the decision and the four steps.reference.mdcovers the full DTO patterns + Object Mapper 4.3 (#[Map(source:)], transformers, when it auto-activates).
Output contract
- New
final readonlyInput/Output classes. - The
#[ApiResource]operation wired with the rightinput/output/processor/provider(or#[Map]annotations). - Validation + IRI-resolution coverage in functional tests.
References
reference.md
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.
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.
- 5d ago First seen · 44 lines · 130 tokens per session scan A 44a6f4e644d9
api-platform-dto-resources is a skill published in the GitHub repository gerard-labs/superpowers-api-platform (2 stars, last pushed 3mo ago), licensed MIT. It adds 130 tokens to every session and 578 once invoked, about $0.0006 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.
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React to Doctrine entity lifecycle in Symfony with attribute listeners (#[AsDoctrineListener]/#[AsEntityListener], ORM 3) and lifecycle callbacks.
symfony:api-platform-dto-resources
Map entities to API DTOs in API Platform v4 with the Symfony Object Mapper (#[Map], stateOptions) for decoupled input/output contracts.
symfony:api-platform-filters
Implement API Platform filters - v4 Parameters API (QueryParameter) and legacy.
symfony:api-platform-versioning
Evolve API Platform APIs via deprecation (deprecationReason/sunset, RFC 8594/9745), the recommended alternative to versioning; plus path/header strategies.
symfony:bootstrap-check
Verify Symfony project configuration including .env, services.yaml, doctrine settings, and framework requirements.
symfony:brainstorming
Structured brainstorming for Symfony projects - explore requirements, identify components, and plan architecture collaboratively.