StateKnot
Docs · Start Overview Choose the right entry point and understand the pre-alpha boundary. Docs · Start Getting started Install the pinned toolchain and validate the repository locally. Docs · Start Core contract examples Compile the first Agent, typed Tool, Model stream, and explicit protocol mapping without runtime dependencies. Docs · Start Typed Agent Generate and pin typed schemas, then bind the first-party OpenAI and Anthropic adapters. Docs · Start In-process Agent Run a typed Agent without HTTP while preserving PostgreSQL durability, authorization, recovery, and owned roles. Docs · Start Durable admission Atomically commit authenticated intent, database time, the first event, and the initial checkpoint. Docs · Start Durable runs and results Submit with a durable ingress key, recover the original run, and read a verified public result. Docs · Understand Compile a graph Build a schema-pinned graph, validate its topology, and freeze its canonical digest. Docs · Understand Subgraphs and loops Compose shared-state subgraphs, finite loops, and explicit recovery-safe return paths. Docs · Understand Skill composition Choose capability bundles, shared-state subgraphs, durable child runs, and guarded MCP Skills without creating a second runtime. Docs · Understand Durability model Learn how journal, checkpoint, lease, fence, and recovery evidence fit together. Docs · Understand Durable Graph runtime Register exact executable code, replay noninitial state, and drive deterministic bounded sibling batches under one fence. Docs · Understand Durable Agent Loop Commit lifecycle handoffs and execute one tenant-scoped durable scheduling quantum. Docs · Understand Durable invocations Execute exact model and tool attempts with durable starts, staged ordered Tool coordination, streaming validation, and no-dispatch terminal recovery. Docs · Understand Provider-native Agent Compile and operate the durable multi-turn graph with bounded output repair, ordered parallel read-only Tools, write barriers, policy, accounting, and cancellation evidence. Docs · Integrate Local Rust Tools Generate digest-pinned schemas, register typed local code, and preserve the durable invocation boundary. Docs · Integrate AgentService v1 Authorize and expose exact durable Agent revisions through the versioned embedding boundary. Docs · Integrate Agent HTTP v1 Submit, recover, read and cancel through authenticated bounded JSON HTTP. Docs · Integrate General MCP Tool client Discover and call bounded stateless MCP 2026-07-28 Tools with JSON/SSE, OAuth, custom headers, and mediated MRTR. Docs · Integrate MCP OAuth client Bind one MCP resource to challenge-driven discovery, PKCE, issuer validation, durable credentials, and bounded replay. Docs · Integrate MCP Remote Tool Bind one strict stateless MCP 2026-07-28 Tool with pinned identity, schemas, durable dispatch, and reconciliation. Docs · Integrate MCP Server profile Expose bounded Tools, Resources, Prompts, Completion, and MRTR behind the strict stateless production boundary. Docs · Integrate MCP Skills Publish and activate Final SEP-2640 static Skills with immutable manifests, origin-scoped approval, and verified lazy reads. Docs · Integrate MCP conformance status See the frozen official runner inventory, implemented evidence, and exact boundary of current MCP claims. Docs · Integrate A2A 1.0 Client Discover and pin one agent, call all eleven operations, and reconcile durable unknown sends only through attested remote guarantees. Docs · Integrate Durable artifact storage Materialize terminal A2A parts into immutable PostgreSQL metadata and private integrity-checked object bytes. Docs · Integrate A2A 1.0 Server Expose bounded HTTP+JSON and JSON-RPC/SSE through identity-first policy and a durable service contract. Docs · Integrate A2A conformance status Inspect the frozen official TCK, audited harness patch, exact result, and server-only claim boundary. Docs · Operate Fair scheduling Configure replica-safe weighted tenant selection, exact starvation bounds, rollout, and retention. Docs · Operate PostgreSQL provider Configure, migrate, verify, and test the implemented durability provider. Docs · Operate Host qualification Record bounded capacity, recovery and fault evidence without turning CI into a production SLO claim. Docs · Project Versioning and releases Pin the public alpha exactly and understand compatibility, MSRV, durable-data, and release gates. Docs · Project Implementation status See what is implemented, in progress, and deliberately not claimed. Home Architecture map What exists, what is active, and what remains planned. Home Current cut Implemented slices and explicit gaps. Home Roadmap The path from contracts to a qualified v1. Repository Source code StateKnot/StateKnot on GitHub. Repository RFCs Draft architecture and durable execution contracts. Repository Security policy Private vulnerability reporting and support policy.
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Pre-alpha documentation

A2A conformance claims stop at the evidence.

Inspect the frozen official TCK input, audited compatibility patch, exact HTTP+JSON and JSON-RPC result, and excluded surfaces.

Exact result

OutcomeCount
Collected265
Passed177
Declared skipped88
Failed / errors / xfails0 / 0 / 0

The per-surface report records Agent Card 10/10, JSON-RPC 94/101 with seven skips, and HTTP+JSON 91/96 with five skips. Other skips primarily cover unconfigured gRPC and mutually exclusive capability branches. Skips are not counted as passes.

Freeze every executable input

  • Official TCK commit 263b9cfaf16a554bdfb166a7ba5b67716e946349.
  • Archive SHA-256 694c798e93fff30f650d44bdb3db0e1768b865a4f3ddbed64ec158db209bf5db.
  • uv 0.11.25, the committed TCK lockfile under --frozen, and Rust 1.88.0.
  • No expected-failures file; an independent verifier rejects drift or a critical skipped case.

The verifier requires executed caching, unknown-field, streaming, multi-subscriber, push-authentication, extended-card, HTTP error, and JSON-RPC SSE cases. CI uploads the complete HTML, JSON, XML, summary, and server log even when the run fails.

Audit the harness patch

The pinned TCK omits the already-defined expected error metadata for CORE-SEND-003 and serializes several JSON-RPC parameters with Python snake-case names instead of A2A camel-case wire names. The committed patch corrects metadata and request serialization only; it does not weaken assertions, remove tests, or add expected failures. The first defect is tracked in upstream issue #202.

Reproduce the gate

Shell · pinned official TCK 
bash conformance/a2a-server/run-1.0.sh

The TCK also prints a 78.8% aggregate over its complete requirement and transport inventory, including unconfigured gRPC and non-applicable branches. StateKnot preserves that raw output alongside the exact test counts instead of presenting it as 100% certification. Read the production service obligations and the separate Client evidence and recovery boundary next.