# Stella Ops Triage API Contract v1

Base path: `/api/triage/v1`

This contract is served by `scanner.webservice` (or a dedicated triage facade that reads scanner-owned tables).
All risk/lattice outputs originate from `scanner.webservice`.

Key requirements:
- Deterministic outputs (policyId + policyVersion + inputsHash).
- Proof-linking (chips reference evidenceIds).
- `concelier` and `excititor` preserve prune source: API surfaces source chains via `sourceRefs`.

## 0. Conventions

### 0.1 Identifiers
- `caseId` == `findingId` (UUID). A case is a finding scoped to an asset/environment.
- Hashes are hex strings.

### 0.2 Caching
- GET endpoints SHOULD return `ETag`.
- Clients SHOULD send `If-None-Match`.

### 0.3 Errors
Standard error envelope:

```json
{
  "error": {
    "code": "string",
    "message": "string",
    "details": { "any": "json" },
    "traceId": "string"
  }
}
```

Common codes:

* `not_found`
* `validation_error`
* `conflict`
* `unauthorized`
* `forbidden`
* `rate_limited`

## 1. Findings Table

### 1.1 List findings

`GET /findings`

Query params:

* `showMuted` (bool, default false)
* `lane` (optional, enum)
* `search` (optional string; searches asset, purl, cveId)
* `page` (int, default 1)
* `pageSize` (int, default 50; max 200)
* `sort` (optional: `updatedAt`, `score`, `lane`)
* `order` (optional: `asc|desc`)

Response 200:

```json
{
  "page": 1,
  "pageSize": 50,
  "total": 12345,
  "mutedCounts": { "reach": 1904, "vex": 513, "compensated": 18 },
  "rows": [
    {
      "id": "uuid",
      "lane": "BLOCKED",
      "verdict": "BLOCK",
      "score": 87,
      "reachable": "YES",
      "vex": "affected",
      "exploit": "YES",
      "asset": "prod/api-gateway:1.2.3",
      "updatedAt": "2025-12-16T01:02:03Z"
    }
  ]
}
```

## 2. Case Narrative

### 2.1 Get case header

`GET /cases/{caseId}`

Response 200:

```json
{
  "id": "uuid",
  "verdict": "BLOCK",
  "lane": "BLOCKED",
  "score": 87,
  "policyId": "prod-strict",
  "policyVersion": "2025.12.14",
  "inputsHash": "hex",
  "why": "Reachable path observed; exploit signal present; prod-strict blocks.",
  "chips": [
    { "key": "reachability", "label": "Reachability", "value": "Reachable (92%)", "evidenceIds": ["uuid"] },
    { "key": "vex", "label": "VEX", "value": "affected", "evidenceIds": ["uuid"] },
    { "key": "gate", "label": "Gate", "value": "BLOCKED by prod-strict", "evidenceIds": ["uuid"] }
  ],
  "sourceRefs": [
    {
      "domain": "concelier",
      "kind": "cve_record",
      "ref": "concelier:osv:...",
      "pruned": false
    },
    {
      "domain": "excititor",
      "kind": "effective_vex",
      "ref": "excititor:openvex:...",
      "pruned": false
    }
  ],
  "updatedAt": "2025-12-16T01:02:03Z"
}
```

Notes:

* `sourceRefs` provides preserved provenance chains (including pruned markers when applicable).

## 3. Evidence

### 3.1 List evidence for case

`GET /cases/{caseId}/evidence`

Response 200:

```json
{
  "caseId": "uuid",
  "items": [
    {
      "id": "uuid",
      "type": "VEX_DOC",
      "title": "Vendor OpenVEX assertion",
      "issuer": "vendor.example",
      "signed": true,
      "signedBy": "CN=Vendor VEX Signer",
      "contentHash": "hex",
      "createdAt": "2025-12-15T22:10:00Z",
      "previewUrl": "/api/triage/v1/evidence/uuid/preview",
      "rawUrl": "/api/triage/v1/evidence/uuid/raw"
    }
  ]
}
```

### 3.2 Get raw evidence object

`GET /evidence/{evidenceId}/raw`

Returns:

* `application/json` for JSON evidence
* `application/octet-stream` for binary
* MUST include `Content-SHA256` header (hex) when possible.

### 3.3 Preview evidence object

`GET /evidence/{evidenceId}/preview`

Returns a compact representation safe for UI preview.

## 4. Decisions

### 4.1 Create decision

`POST /decisions`

Request body:

```json
{
  "caseId": "uuid",
  "kind": "MUTE_REACH",
  "reasonCode": "NON_REACHABLE",
  "note": "No entry path in this env; reviewed runtime traces.",
  "ttl": "2026-01-16T00:00:00Z"
}
```

Response 201:

```json
{
  "decision": {
    "id": "uuid",
    "kind": "MUTE_REACH",
    "reasonCode": "NON_REACHABLE",
    "note": "No entry path in this env; reviewed runtime traces.",
    "ttl": "2026-01-16T00:00:00Z",
    "actor": { "subject": "user:abc", "display": "Vlad" },
    "createdAt": "2025-12-16T01:10:00Z",
    "signatureRef": "dsse:rekor:uuid"
  }
}
```

Rules:

* Server signs decisions (DSSE) and persists signature reference.
* Creating a decision MUST create a `Snapshot` with trigger `DECISION`.

### 4.2 Revoke decision

`POST /decisions/{decisionId}/revoke`

Body (optional):

```json
{ "reason": "Mistake; reachability now observed." }
```

Response 200:

```json
{ "revokedAt": "2025-12-16T02:00:00Z", "signatureRef": "dsse:rekor:uuid" }
```

## 5. Snapshots & Smart-Diff

### 5.1 List snapshots

`GET /cases/{caseId}/snapshots`

Response 200:

```json
{
  "caseId": "uuid",
  "items": [
    {
      "id": "uuid",
      "trigger": "POLICY_UPDATE",
      "changedAt": "2025-12-16T00:00:00Z",
      "fromInputsHash": "hex",
      "toInputsHash": "hex",
      "summary": "Policy version changed; gate threshold crossed."
    }
  ]
}
```

### 5.2 Smart-Diff between two snapshots

`GET /cases/{caseId}/smart-diff?from={inputsHashA}&to={inputsHashB}`

Response 200:

```json
{
  "fromInputsHash": "hex",
  "toInputsHash": "hex",
  "inputsChanged": [
    { "key": "policyVersion", "before": "2025.12.14", "after": "2025.12.16", "evidenceIds": ["uuid"] }
  ],
  "outputsChanged": [
    { "key": "verdict", "before": "SHIP", "after": "BLOCK", "evidenceIds": ["uuid"] }
  ]
}
```

## 6. Export Evidence Bundle

### 6.1 Start export

`POST /cases/{caseId}/export`

Response 202:

```json
{
  "exportId": "uuid",
  "status": "QUEUED"
}
```

### 6.2 Poll export

`GET /exports/{exportId}`

Response 200:

```json
{
  "exportId": "uuid",
  "status": "READY",
  "downloadUrl": "/api/triage/v1/exports/uuid/download"
}
```

### 6.3 Download bundle

`GET /exports/{exportId}/download`

Returns:

* `application/zip`
* DSSE envelope embedded (or alongside in zip)
* bundle contains replay manifest, artifacts, risk result, snapshots

## 7. Events (Notify.WebService integration)

These are emitted by `notify.webservice` when scanner outputs change.

* `first_signal`
  * fired on first actionable detection for an asset/environment
* `risk_changed`
  * fired when verdict/lane changes or thresholds crossed
* `gate_blocked`
  * fired when CI gate blocks

Event payload includes:

* caseId
* old/new verdict/lane/score (for changed events)
* inputsHash
* links to `/cases/{caseId}`

---

**Document Version**: 1.0
**Target Platform**: .NET 10, PostgreSQL >= 16