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Protocol specification analysis
Translates protocol requirements into an integration contract and checks where reference implementations or libraries differ from the specification.
protocol-spec-reference-analysis
Team members using this skill
When is it useful?
Use it when implementing an open standard, choosing a protocol library or investigating interoperability failures.
What does it help you do?
- Distinguishes normative MUST, SHOULD and MAY requirements.
- Checks state machines against reference implementations and edge cases.
- Compares library adoption with direct protocol implementation.
Try asking this
Map this protocol’s reconnect requirements and identify interoperability tests for our adapter. Disconnect after a message is accepted but before acknowledgement. Compare our adapter with the reference behavior for replay, ordering and duplicate handling.
Detailed documentation
Read the skill’s original instructions, examples and checks in their authored language.
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Protocol, Specification & Reference Implementation Analysis
When integrating with a standard protocol (e.g., OAuth/OIDC, WebSockets, SSE, JSON-RPC, MCP, LSP, OpenTelemetry, Git wire protocol, Webhook signatures), reading a single blog post is never enough. Combine the formal specification with battle-tested reference implementations.
Workflow
- Map normative requirements (
MUST,SHOULD,MAY):- Read the primary specification (IETF RFC, W3C spec, official protocol schema) for the exact version in question.
- Extract:
- Message framing & encoding: Headers, content types, character encoding, delimiter rules, and maximum payload limits.
- State machine & handshake: Connection setup, authentication/negotiation, heartbeats/keep-alives, Ordering guarantees, and graceful teardown.
- Error & retry semantics: Standard error codes, idempotency guarantees, backoff headers (
Retry-After), and partial failure handling.
- Compare the spec against reference implementations:
- Real-world interoperability often depends on de facto behaviors not obvious from the prose spec. Inspect 1–2 canonical reference implementations and their conformance test suites:
- How do they handle malformed frames, half-open connections, clock skew, or out-of-order messages?
- Where do popular clients or servers deviate from strict spec compliance?
- Real-world interoperability often depends on de facto behaviors not obvious from the prose spec. Inspect 1–2 canonical reference implementations and their conformance test suites:
- Evaluate library vs. direct protocol implementation:
- If the wire protocol is a simple subset over existing primitives (e.g., JSON-RPC 2.0 over
stdioor HMAC-SHA256 webhook verification), a 100-line typed implementation using standard runtime crypto/streams is often safer and easier to debug than a heavy third-party SDK. - If the protocol has complex cryptographic, state-machine, or edge-case surface (e.g., OAuth2 PKCE/OIDC token validation, HTTP/2 framing, CRDT sync), strongly prefer a vetted, conformance-tested library.
- If the wire protocol is a simple subset over existing primitives (e.g., JSON-RPC 2.0 over
- Produce a protocol integration contract:
- Document supported protocol version(s), frame schemas, timeout/retry rules, security validations, and conformance test vectors derived from the official spec.
Included files 1
SKILL.md