- name
- amphp
- description
- >
- allowed-tools
- Read, Write, Edit, Bash, Glob, Grep, Agent
AMPHP v3 Skill
Version
This skill covers AMPHP v3 only — amphp/amp ^3, revolt/event-loop ^1, PHP 8.1+.
If you see v2 patterns (yield $promise, Amp\Loop::run(), Promise, Coroutine), treat them as wrong and rewrite using v3 equivalents. See docs/v2-v3.md for the full migration table.
Non-Negotiable Rules
These apply to every file you write or modify in an AMPHP project:
- Always add
declare(strict_types=1) at the top of every PHP file. - Always pass
JSON_THROW_ON_ERROR to every json_encode / json_decode call. - Never use blocking I/O (
file_get_contents, PDO, curl_exec, sleep) inside the event loop — use async equivalents from amphp/file, amphp/mysql, amphp/http-client, Amp\delay(). - Always release mutex/semaphore locks in a
finally block — exceptions skip cleanup otherwise. - Always
buffer() or fully iterate HTTP response bodies — unread bodies block connection reuse.
For the full list of 19+ documented gotchas (buffer deadlocks, channel EOF, arrow function capture, Redis factory vs constructor, etc.), read docs/common-mistakes.md before writing async code.
Reference Files
Load only the file(s) relevant to the task. Do not load all files at once.
Docs
| File | When to load |
|---|
docs/constructors.md | Instantiating any AMPHP class — verified constructor signatures, param names, defaults, and factory methods |
docs/namespaces.md | Writing use imports — complete namespace paths for every class, function, and enum |
docs/packages.md | Starting a new project or adding a dependency — composer require commands and package overview |
docs/common-mistakes.md | Before writing any async code — 19+ real bugs with wrong/correct examples |
docs/v2-v3.md | Migrating from AMPHP v2 or encountering yield/Promise/Coroutine patterns |
Examples
| File | When to load |
|---|
examples/core-async.md | EventLoop bootstrap, async(), delay(), Future combinators (await, awaitAll, awaitAny), DeferredFuture |
examples/cancellation.md | TimeoutCancellation, DeferredCancellation, CompositeCancellation, propagating cancellation |
examples/sync.md | LocalMutex, LocalSemaphore, LocalParcel, Barrier, LocalKeyedMutex, RateLimitingSemaphore, synchronized() |
examples/http-server.md | Minimal server, Router with route params, Middleware stack, TLS, Sessions, Static files, proxy setup |
examples/http-client.md | GET/POST, parallel requests, ConnectionLimitingPool, interceptors, proxy, streaming response body |
examples/websocket.md | Echo server, push-only with drain pattern, broadcast gateway, WS client, streaming binary messages |
examples/byte-stream.md | ReadableBuffer, pipe(), GZIP compress/decompress, Base64 encode/decode, splitLines() |
examples/pipelines.md | Queue back-pressure, Pipeline operators (map, filter, tap), concurrent(), merge(), concat() |
examples/parallel.md | Task interface, fan-out with worker pool, IPC Channel progress reporting, ChannelException handling |
examples/database.md | MySQL connection pool, transactions, prepared statements; Redis get/set/hash/pubsub/cache |
examples/file-io.md | File\
ead/write/exists/getSize/openFile/listFiles/deleteDirectory/createDirectoryRecursively |
examples/cache.md | LocalCache (LRU + TTL), AtomicCache (compute-if-absent), PrefixCache, NullCache |
examples/interval.md | Interval repeating timer, enable/disable, weakClosure() to prevent GC cycles, EventLoop::delay/repeat/cancel |
examples/testing.md | AsyncTestCase, constructing mock Request objects, League\Uri\Http::new(), phpunit CLI flags |
Workflows
Templates
Scripts
Resources
Legacy
| File | Contents |
|---|
references/advanced-patterns.md | Deep dives: fiber model internals, all Future combinators, Queue back-pressure mechanics, Pipeline concurrency, Cancellation semantics, EventLoop timer details |
references/class-examples.md | One minimal usage example per key AMPHP class, organized by package |
