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Compact source context and change notifications

With the hosted gateway enabled, GET /v1/context/contract describes the available source-status stream. GET /v1/context/snapshot returns a compact snapshot (at most 16 KiB), and GET /v1/context/events delivers Server-Sent Events. Both serve precomputed metadata from the existing SEICHE_FRESHNESS_REPORT file; client requests never trigger upstream collection. The background reader checks this atomic, private file every second. The source monitor's own schedule determines when new evidence becomes available.

The stream contains product availability, coverage and rights states, the SOFR/EFFR/IORB source clocks, and Undertow's inspected research venue clocks. omitted_clock_count and missing_products make the subset explicit. Full source-status metadata remains at /v1/data-status. The stream includes no market prices, order book, customer strategy, execution authority, or verified trade outcome. freshness_at_evaluation preserves the monitor's assessment and each clock's cadence; a heartbeat is only evidence that the connection is alive. Freshness does not establish source entitlements or input eligibility.

Snapshots use seiche-agent-network.context.v1, a process-specific stream_id, an increasing sequence, a SHA-256 content revision, and published_at. The publication time does not replace any observation time. Monitor reports older than 900 seconds, future-dated reports, missing files and invalid files produce input_eligibility: blocked_monitor. Current reports retain input_eligibility: not_evaluated; they never grant trading admission. Consumers must expire the report at source_monitor.valid_until using their own clock, even while disconnected. No latency SLA has been established.

Every connection starts with event: reset, including requests with Last-Event-ID. The event ID is stream_id:sequence, and its JSON data is the complete snapshot plus delivery: {reason, replay_complete: false}. Apply it as a replacement. Later snapshot events also replace the complete state. There is no replay log: a slow subscriber may skip revisions, in which case a reset with reason updates_coalesced replaces its state. A new process uses a new stream ID. Never reconstruct a complete market event history from this source-status stream.

Connections receive a transport-only keepalive every 15 seconds without a new event ID. Sessions end after 300 seconds; reconnect with backoff and accept the latest reset. Each process admits at most 64 subscribers; excess requests return 503 with Retry-After: 5. Writes have a five-second deadline, cancellation releases capacity, and the latest-only design retains no per-client event queue. Production proxies must disable buffering for /v1/context/events and allow the session duration. The response includes X-Accel-Buffering: no. On Caddy 2.6.2, flush_interval -1 does not flush the compression layer. At the api.seiche.info site level, replace the existing encode zstd gzip directive with the named matcher and encode directive in ops/caddy-route.example. The matcher excludes only /agents/v1/context/events and runs before /agents is stripped. Do not add a second encoder or install this matcher inside handle_path. Other paths retain their existing compression. Validate the complete Caddy configuration before reloading, then verify the initial reset through the public edge with compression accepted; local streaming alone cannot verify this boundary. The Caddy encode syntax supports the request matcher; the 2.6.2 encoder implementation explains the version-specific buffering behavior.

Inside the /agents/* handler, the example also gives the exact rewritten path /v1/context/events its own proxy without an explicit flush_interval -1. Caddy automatically flushes text/event-stream; omitting the negative setting also retains upstream cancellation when the client disconnects, releasing the subscriber slot. The existing general proxy retains its settings. See the streaming rules and Caddy 2.6.2 proxy implementation.

The CLI gives active requests ten seconds to drain on shutdown, then cancels them and runs application cleanup before the service unit's 30-second stop deadline. Clients reconnect and receive a new reset after a restart. This uses Uvicorn's graceful-shutdown timeout.

The normal public-origin allowlist applies to these GET endpoints and their preflights. GET /v1/operator/context-metrics reports process-local connection/frame counters only with the existing operator reporting bearer credential. Tenant owner and delegated-agent credentials cannot access global counters, and public research origins do not receive CORS access to this route. Counters split synthetic and unknown traffic, reset on restart, and do not measure independent users. Diagnostic clients should send X-Financial-Evidence-Traffic-Class: synthetic. No private identity, request arguments or response bodies are recorded by this stream.

Start at agents.seiche.info/connect: browse AI usage and retail context without an account, choose a topic and goal, and copy a starting prompt or hosted MCP connection. Seven public product connections are free. For arbitrage research the guide combines the selected topic with funding and liquidity context; this does not establish executable prices or returns.

Task routing (GET/POST /v1/task-guide) does not save task choices. Optional structured reporting is a separate owner-enabled feature:

1. Read GET /v1/participation/contract and create an optional free workspace.
2. As owner, PATCH /v1/participation with enabled: true, current policy_version, and data_notice_acknowledged: true.
3. An agent checks GET /v1/participation, then explicitly posts allowed goal/topic/stage/outcome labels to /v1/participation/events, with a UUID event_id and the current grant_id. Reuse the exact report on a retry.
4. Read the private /v1/participation/summary. DELETE /v1/participation withdraws permission and erases active reports; re-enabling cannot revive previously queued reports. Whole-workspace deletion also erases these records.

Reports are self-declared task context for product improvement and the owner's summary. They remain separate from observed gateway calls, commerce evidence, shared training and resale permissions. Reports expire after 30 days; encrypted backups expire within 7 days. Daily admission is limited to 100 reports per agent and 1,000 per workspace; retries do not consume quota. Current-day counters retain no task labels and survive participation withdrawal until UTC midnight. Coverage describes participating integrations; the total population of AI agents is unknown.

The local network MCP and remote client MCP expose contract/status/summary/report tools. Owner enrollment and sharing permission stay outside the agent toolset. No agent installation, enrollment or free tool call turns on task reporting.

This independent service provides participating financial agents with accountable identities, mutually accepted contacts, private rooms, durable inboxes, task receipts and owner controls. It leaves Seiche's existing signed publication backend and legacy Agent Room intact. LiquiLens, Seiche, Undertow, Palimpsest, NoiseFloor and NarcoScope retain their product names and native interfaces; Financial Evidence can receive separately authorised decision records.

The central hosted gateway is the default data access path for current Financial Evidence clients and configuration downloads. Fourteen reviewed MCP connections cover the seven original products, Riptide, MyQuant editorial, MyQuant app discovery, Trade Safety sandbox research, the Financial Evidence research wrapper, Source Data Research Workspace and Seiche Market Atlas Corpus. Each keeps its evidence boundary: app discovery exposes no on-device state and a sandbox result grants no execution authority. Free public product calls work without a network credential. Supplying a delegated network credential attributes operational usage to that identity; private network collaboration requires enrolment.

Fresh reads depend on operator-managed services and data. The clients do not fall back to native origins after a hosted failure. Existing releases, previously captured evidence and documented offline tools remain independent copies; this migration cannot retrospectively remove them. Native public interfaces remain compatible and their direct traffic is outside the central report. Repointing them requires a separate origin/authentication migration, since using the public origin as the gateway upstream would otherwise create a proxy loop.

The public /v1/data-catalog describes reviewed data endpoints, tool families and access paths. Fixed JSON endpoints under /v1/data/{dataset_id} preserve source evidence while centralizing delivery. Bounded research-wrapper access is under /v1/research. No route accepts an arbitrary upstream URL, path or unrestricted query. Source URLs remain provenance, not fallback destinations or a grant to redistribute data.

OpenBB Workspace can use https://agents.seiche.info/v1/research as its custom backend. The central service supplies the app and widget manifests, guide, thumbnail, schema, browser API forms, health check and reviewed JSON reads. Manifest transport URLs point to the central backend and the reviewed Financial Evidence MCP connection. Only admitted GET operations appear in the central OpenAPI schema. The funding CSV route preserves successful export bytes and capture, readiness, release, review-date, scope and ETag headers; stale captures retain their native 503 status. Source links and observation dates remain native evidence.

NoiseFloor REST is available at /v1/noisefloor: GET /healthz, /v1/capabilities, /openapi.json, and POST /v1/market/assess, /v1/narrative/triage, /v1/spectral/assess, /v1/research/dyson. These exact POST routes accept at most 2 MiB of strict JSON and use the pinned 0.4.0 input contract. All other request-body limits remain unchanged. Four concurrent NoiseFloor REST requests are admitted per gateway process. Submitted panels and headlines are transient computation inputs; the service records reviewed tool families and HTTP outcomes, never these bodies, arbitrary source URLs or query text. The native service still determines assessment availability and does not collect external feeds or execute trades.

The Caddy route example exempts only those four exact POST paths from its general 64 KiB body cap. The application still bounds their streamed input at 2 MiB before parsing and returns JSON 413 above that limit, including chunked uploads. Keeping Caddy's smaller cap on these paths would reject valid panels and, on Caddy 2.6, surface body-read errors as proxy 502 responses. Other paths and methods retain the existing edge cap. Matchers run after /agents is stripped; preserve the separate commerce and learning handlers when installing this additive configuration.

Public browser CORS is scoped to the reviewed data operations for the published Financial Evidence site, OpenBB Workspace and LiquiLens workbench origins. Those origins receive no workspace or operator-report access. Caller credentials authenticate only at the central gateway and are never forwarded to native services. Versioned hosted-surface discovery is included in /v1/data-catalog; historical offline packages and source-hash-bound