docs/openapi-tess.yaml

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+openapi: 3.1.0
+info: { title: Mosaic Tess Gateway, version: 1.0.0 }
+security: [{ sessionAuth: [] }]
+paths:
+  /api/interaction/{agentName}/sessions:
+    {
+      get:
+        {
+          summary: List authorized runtime sessions,
+          parameters:
+            [
+              { $ref: '#/components/parameters/agentName' },
+              { $ref: '#/components/parameters/provider' },
+              { $ref: '#/components/parameters/correlation' },
+            ],
+          responses: { '200': { description: Sessions } },
+        },
+    }
+  /api/interaction/{agentName}/transitional-capabilities:
+    {
+      get:
+        {
+          summary: Get transitional capability matrix,
+          parameters:
+            [
+              { $ref: '#/components/parameters/agentName' },
+              { $ref: '#/components/parameters/provider' },
+              { $ref: '#/components/parameters/correlation' },
+            ],
+          responses: { '200': { description: Matrix } },
+        },
+    }
+  /api/interaction/{agentName}/tree:
+    {
+      get:
+        {
+          summary: Get authorized session tree,
+          parameters:
+            [
+              { $ref: '#/components/parameters/agentName' },
+              { $ref: '#/components/parameters/provider' },
+              { $ref: '#/components/parameters/correlation' },
+            ],
+          responses: { '200': { description: Tree } },
+        },
+    }
+  /api/interaction/{agentName}/sessions/{sessionId}/enroll:
+    {
+      post:
+        {
+          summary: Enroll a durable session,
+          parameters:
+            [
+              { $ref: '#/components/parameters/agentName' },
+              { $ref: '#/components/parameters/sessionId' },
+              { $ref: '#/components/parameters/correlation' },
+            ],
+          requestBody: { $ref: '#/components/requestBodies/Enroll' },
+          responses: { '200': { description: Enrolled } },
+        },
+    }
+  /api/interaction/{agentName}/sessions/{sessionId}/attach:
+    {
+      post:
+        {
+          summary: Attach to a runtime session,
+          parameters:
+            [
+              { $ref: '#/components/parameters/agentName' },
+              { $ref: '#/components/parameters/sessionId' },
+              { $ref: '#/components/parameters/correlation' },
+            ],
+          requestBody: { $ref: '#/components/requestBodies/Attach' },
+          responses: { '200': { description: Attachment } },
+        },
+    }
+  /api/interaction/{agentName}/sessions/{sessionId}/send:
+    {
+      post:
+        {
+          summary: Queue a durable provider send,
+          parameters:
+            [
+              { $ref: '#/components/parameters/agentName' },
+              { $ref: '#/components/parameters/sessionId' },
+              { $ref: '#/components/parameters/correlation' },
+            ],
+          requestBody: { $ref: '#/components/requestBodies/Send' },
+          responses: { '200': { description: Queued } },
+        },
+    }
+  /api/interaction/{agentName}/sessions/{sessionId}/stop:
+    {
+      post:
+        {
+          summary: Stop a session with approval,
+          parameters:
+            [
+              { $ref: '#/components/parameters/agentName' },
+              { $ref: '#/components/parameters/sessionId' },
+              { $ref: '#/components/parameters/correlation' },
+            ],
+          requestBody: { $ref: '#/components/requestBodies/Stop' },
+          responses: { '200': { description: Stopped }, '403': { description: Approval denied } },
+        },
+    }
+  /api/interaction/{agentName}/sessions/{sessionId}/recover:
+    {
+      post:
+        {
+          summary: Recover interrupted durable work,
+          parameters:
+            [
+              { $ref: '#/components/parameters/agentName' },
+              { $ref: '#/components/parameters/sessionId' },
+              { $ref: '#/components/parameters/correlation' },
+            ],
+          responses: { '200': { description: Recovered } },
+        },
+    }
+  /api/coord/mos/handoff:
+    {
+      post:
+        {
+          summary: Submit Mos handoff,
+          parameters: [{ $ref: '#/components/parameters/correlation' }],
+          requestBody: { $ref: '#/components/requestBodies/MosHandoff' },
+          responses: { '200': { description: Receipt } },
+        },
+    }
+  /api/coord/mos/{handoffId}/observe:
+    {
+      get:
+        {
+          summary: Observe Mos handoff,
+          parameters:
+            [
+              { $ref: '#/components/parameters/handoffId' },
+              { $ref: '#/components/parameters/correlation' },
+            ],
+          responses: { '200': { description: Observation } },
+        },
+    }
+  /api/coord/mos/{handoffId}/result:
+    {
+      get:
+        {
+          summary: Get Mos handoff result,
+          parameters:
+            [
+              { $ref: '#/components/parameters/handoffId' },
+              { $ref: '#/components/parameters/correlation' },
+            ],
+          responses: { '200': { description: Result } },
+        },
+    }
+  /api/interaction/{agentName}/sessions/{sessionId}/stream:
+    {
+      get:
+        {
+          summary: Stream runtime events,
+          parameters:
+            [
+              { $ref: '#/components/parameters/agentName' },
+              { $ref: '#/components/parameters/sessionId' },
+              { $ref: '#/components/parameters/correlation' },
+            ],
+          responses:
+            {
+              '200':
+                {
+                  description: Event stream,
+                  content: { text/event-stream: { schema: { type: string } } },
+                },
+            },
+        },
+    }
+  /api/memory/preferences:
+    {
+      get: { summary: List preferences, responses: { '200': { description: Preferences } } },
+      post:
+        {
+          summary: Upsert preference,
+          requestBody: { $ref: '#/components/requestBodies/Preference' },
+          responses: { '200': { description: Preference } },
+        },
+    }
+  /api/memory/preferences/{key}:
+    {
+      get:
+        {
+          summary: Get preference,
+          parameters: [{ $ref: '#/components/parameters/key' }],
+          responses: { '200': { description: Preference } },
+        },
+      delete:
+        {
+          summary: Delete preference,
+          parameters: [{ $ref: '#/components/parameters/key' }],
+          responses: { '204': { description: Deleted } },
+        },
+    }
+  /api/memory/insights:
+    {
+      get: { summary: List insights, responses: { '200': { description: Insights } } },
+      post:
+        {
+          summary: Create insight,
+          requestBody: { $ref: '#/components/requestBodies/Insight' },
+          responses: { '200': { description: Insight } },
+        },
+    }
+  /api/memory/insights/{id}:
+    {
+      get:
+        {
+          summary: Get insight,
+          parameters: [{ $ref: '#/components/parameters/id' }],
+          responses: { '200': { description: Insight } },
+        },
+      delete:
+        {
+          summary: Delete insight,
+          parameters: [{ $ref: '#/components/parameters/id' }],
+          responses: { '204': { description: Deleted } },
+        },
+    }
+  /api/memory/search:
+    {
+      post:
+        {
+          summary: Search memory,
+          requestBody: { $ref: '#/components/requestBodies/Search' },
+          responses: { '200': { description: Search results } },
+        },
+    }
+components:
+  securitySchemes: { sessionAuth: { type: http, scheme: bearer } }
+  parameters:
+    agentName: { name: agentName, in: path, required: true, schema: { type: string } }
+    sessionId: { name: sessionId, in: path, required: true, schema: { type: string } }
+    provider: { name: provider, in: query, required: true, schema: { type: string } }
+    correlation: { name: X-Correlation-Id, in: header, required: true, schema: { type: string } }
+    key: { name: key, in: path, required: true, schema: { type: string } }
+    id: { name: id, in: path, required: true, schema: { type: string } }
+  requestBodies:
+    Enroll:
+      {
+        required: true,
+        content:
+          {
+            application/json:
+              {
+                schema:
+                  {
+                    type: object,
+                    required: [providerId, runtimeSessionId],
+                    properties:
+                      { providerId: { type: string }, runtimeSessionId: { type: string } },
+                  },
+              },
+          },
+      }
+    MosHandoff:
+      {
+        required: true,
+        content:
+          {
+            application/json:
+              {
+                schema:
+                  {
+                    type: object,
+                    required: [idempotencyKey, summary],
+                    properties:
+                      {
+                        idempotencyKey: { type: string },
+                        summary: { type: string },
+                        context: { type: string },
+                        missionId: { type: string },
+                      },
+                  },
+              },
+          },
+      }
+    Attach:
+      {
+        content:
+          {
+            application/json: { schema: { type: object, properties: { mode: { enum: [read] } } } },
+          },
+      }
+    Send:
+      {
+        required: true,
+        content:
+          {
+            application/json:
+              {
+                schema:
+                  {
+                    type: object,
+                    required: [content, idempotencyKey],
+                    properties: { content: { type: string }, idempotencyKey: { type: string } },
+                  },
+              },
+          },
+      }
+    Stop:
+      {
+        required: true,
+        content:
+          {
+            application/json:
+              {
+                schema:
+                  {
+                    type: object,
+                    required: [approvalRef],
+                    properties: { approvalRef: { type: string } },
+                  },
+              },
+          },
+      }
+    Preference:
+      {
+        required: true,
+        content:
+          {
+            application/json:
+              {
+                schema:
+                  {
+                    type: object,
+                    required: [key, value],
+                    properties:
+                      {
+                        key: { type: string },
+                        value: {},
+                        category: { type: string },
+                        source: { type: string },
+                      },
+                  },
+              },
+          },
+      }
+    Insight:
+      {
+        required: true,
+        content:
+          {
+            application/json:
+              {
+                schema:
+                  {
+                    type: object,
+                    required: [content],
+                    properties:
+                      {
+                        content: { type: string },
+                        source: { type: string },
+                        category: { type: string },
+                        metadata: { type: object },
+                      },
+                  },
+              },
+          },
+      }
+    Search:
+      {
+        required: true,
+        content:
+          {
+            application/json:
+              {
+                schema:
+                  {
+                    type: object,
+                    required: [query],
+                    properties:
+                      {
+                        query: { type: string },
+                        limit: { type: integer },
+                        maxDistance: { type: number },
+                      },
+                  },
+              },
+          },
+      }

docs/tess/ADMIN-GUIDE.md

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+# Tess Administration
+
+Configure agent/provider identities outside client input. Verify `/health/ready` and provider health before enabling interaction clients. Every interaction request requires an authenticated actor and correlation header; tenant and owner scope are server-derived. Do not log or return service credentials.
+
+For an incident, preserve correlation IDs, inspect provider status and durable checkpoint/inbox/outbox state, then use the recovery endpoint. Do not retry an ambiguous external effect automatically. Stop operations require an exact one-time approval reference; provisioning or granting a broad admin capability does not replace that check.

docs/tess/DEVELOPER-GUIDE.md

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+# Tess Developer Guide
+
+Interaction adapters pass only server-derived actor/tenant scope, channel, and correlation to runtime providers. Durable session state owns inbox/outbox/checkpoint recovery. Use the OpenAPI contract rather than inventing routes; unsupported provider capabilities fail closed.

docs/tess/M5-003-DOCUMENTATION-CHECKLIST.md

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+# TESS-M5-003 Documentation Checklist
+
+- [x] `openapi-tess.yaml`: authenticated interaction endpoints including SSE stream, Mos handoff/observe/result, and memory preferences, insights, and search.
+- [x] User guide: authorized session and handoff workflows.
+- [x] Admin guide: provisioning, policy, health, and approval boundary.
+- [x] Developer guide: scope, durable state, and provider adapter contract.
+- [x] Plugin guide: replaceable-adapter, redaction, and identity-as-data rules.
+- [x] Operations guide: readiness, recovery, ambiguous-effect safety, and tracing.

docs/tess/OPERATIONS-GUIDE.md

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+# Tess Operations and Recovery
+
+Check `/health/ready`, provider health, and effective policy before recovery. Recover durable sessions through the interaction recovery operation; it requeues only interrupted work and does not replay ambiguous external effects. Preserve correlation IDs for incident tracing and use Mos handoff observation/result endpoints for orchestration visibility.

docs/tess/PLUGIN-GUIDE.md

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+# Tess Plugin Authoring
+
+Plugins are replaceable adapters. Declare capabilities, derive scope from trusted context, preserve correlation IDs, redact before persistence/egress, and return unsupported operations as fail-closed results. Names and identities are configuration data, not literals in keys or defaults.

docs/tess/USER-GUIDE.md

@@ -0,0 +1,5 @@
+# Tess User Guide
+
+All HTTP interaction calls require authenticated session credentials and `X-Correlation-Id`. Use `GET /api/interaction/{agentName}/sessions?provider=...` to list only visible runtime sessions, then enroll with `POST .../sessions/{sessionId}/enroll` body `{providerId,runtimeSessionId}`. Attach uses `{mode:"read"}`; send uses `{content,idempotencyKey}`. Stop requires `{approvalRef}` and fails with 403 without the exact durable approval. Recovery only requeues interrupted durable work.
+
+Memory is user-scoped: preferences support list/get/upsert/delete; insights support list/get/create/delete; search body is `{query,limit?,maxDistance?}`. Mos work is handed off with `POST /api/coord/mos/handoff`; observe and result use the returned handoff ID.