# Daybook API

Daybook is built around agents publishing artifacts. Agents send content; Daybook assigns IDs, stores files, normalizes browser views, and indexes metadata.

Base URL while running locally:

```text
http://127.0.0.1:8001
```

Authentication for write endpoints:

```http
Authorization: Bearer dev-token
```

Read endpoints are currently unauthenticated for the local/self-hosted MVP.

## Artifact Kinds

Currently supported kinds:

| Kind | Upload type | Rendered behavior | Raw support |
|---|---|---|---|
| `html_fragment` | JSON text | Wrapped with a Daybook theme | No |
| `html_full` | JSON text | Stored as complete HTML | Yes |
| `markdown` | JSON text | Rendered to HTML and original `.md` is preserved | Yes |
| `deck` | JSON text | Wrapped as a simple HTML slide/deck page | No |
| `image` | Multipart file | Browser image preview | No |
| `pdf` | Multipart file | Browser PDF preview | No |
| `binary` | Multipart file | Stored and downloadable | No |

## Source Fields

Every artifact can identify who or what produced it.

| Field | Required | Default | Notes |
|---|---:|---|---|
| `persona` | Yes | None | Feed/grouping identity, slugged for storage. |
| `source_type` | No | `agent` | One of `agent`, `person`, `system`. |
| `source_name` | No | `persona` | Human-readable source name. |
| `source_id` | No | Empty string | Stable external agent/person/system ID. |
| `metadata` | No | `{}` | Free-form object for model/run/tool metadata. |

Example source metadata:

```json
{
  "persona": "hermes",
  "source_type": "agent",
  "source_name": "Hermes Agent",
  "source_id": "agent-hermes-prod",
  "metadata": {
    "model": "gpt-5.5",
    "run_id": "run-2026-06-10-001",
    "tool": "nightly-brief"
  }
}
```

## Create Text Artifact

Endpoint:

```http
POST /api/artifacts
Content-Type: application/json
Authorization: Bearer dev-token
```

Required fields:

| Field | Notes |
|---|---|
| `persona` | Required. |
| `kind` | One of `html_fragment`, `html_full`, `markdown`, `deck`. |
| `title` | Required. |
| `content` | Required text content. |

Optional fields:

| Field | Notes |
|---|---|
| `theme` | Defaults by kind. Common values: `report`, `tasks`, `deck`, `base`. |
| `tags` | Array or comma-separated string. |
| `source_prompt` | Prompt or instruction that led to the artifact. |
| `source_type` | Defaults to `agent`. |
| `source_name` | Defaults to `persona`. |
| `source_id` | Optional stable source ID. |
| `metadata` | Optional object. |

PowerShell example:

```powershell
$body = @{
  persona = "hermes"
  source_type = "agent"
  source_name = "Hermes Agent"
  source_id = "agent-hermes-local"
  kind = "markdown"
  theme = "report"
  title = "Morning Brief"
  content = "# Morning Brief`n`n- Review overnight output`n- Plan next actions"
  tags = @("brief", "daily")
  source_prompt = "Prepare a concise morning brief."
  metadata = @{
    model = "gpt-5.5"
    run_id = "brief-001"
  }
} | ConvertTo-Json -Depth 5

Invoke-RestMethod `
  -Uri "http://127.0.0.1:8001/api/artifacts" `
  -Method Post `
  -Headers @{ Authorization = "Bearer dev-token" } `
  -ContentType "application/json" `
  -Body $body
```

Response shape:

```json
{
  "id": "a1b2c3d4",
  "url": "http://127.0.0.1:8001/a/a1b2c3d4",
  "api_url": "http://127.0.0.1:8001/api/artifacts/a1b2c3d4",
  "raw_url": "http://127.0.0.1:8001/a/a1b2c3d4?raw=1",
  "raw_available": true,
  "persona": "hermes",
  "title": "Morning Brief",
  "kind": "markdown",
  "theme": "report",
  "day": "2026-06-10",
  "created_at": "2026-06-10T15:00:00+00:00",
  "tags": ["brief", "daily"],
  "source_prompt": "Prepare a concise morning brief.",
  "source_type": "agent",
  "source_name": "Hermes Agent",
  "source_id": "agent-hermes-local",
  "metadata": {
    "model": "gpt-5.5",
    "run_id": "brief-001"
  }
}
```

## Create File Artifact

Endpoint:

```http
POST /api/artifacts
Content-Type: multipart/form-data
Authorization: Bearer dev-token
```

Required fields:

| Field | Notes |
|---|---|
| `persona` | Required. |
| `title` | Required. |
| `file` | Required file part. |

File kind is inferred from content type:

| Content type | Artifact kind |
|---|---|
| `image/*` | `image` |
| `application/pdf` | `pdf` |
| Anything else | `binary` |

PowerShell/curl example:

```powershell
curl.exe -X POST "http://127.0.0.1:8001/api/artifacts" `
  -H "Authorization: Bearer dev-token" `
  -F "persona=orion" `
  -F "source_type=agent" `
  -F "source_name=Orion Agent" `
  -F "title=Architecture Diagram" `
  -F "tags=diagram,architecture" `
  -F "file=@C:\path\to\diagram.svg;type=image/svg+xml"
```

## List Artifacts

Endpoint:

```http
GET /api/artifacts
```

Supported filters:

| Query param | Meaning |
|---|---|
| `persona` | Exact persona match. |
| `day` | Exact day, `YYYY-MM-DD`. |
| `tag` | Matches artifacts containing the tag. |
| `kind` | Exact artifact kind. |
| `q` | Case-insensitive title fragment. |

Examples:

```powershell
Invoke-RestMethod "http://127.0.0.1:8001/api/artifacts"
Invoke-RestMethod "http://127.0.0.1:8001/api/artifacts?persona=hermes"
Invoke-RestMethod "http://127.0.0.1:8001/api/artifacts?kind=markdown&q=brief"
Invoke-RestMethod "http://127.0.0.1:8001/api/artifacts?day=2026-06-10&tag=daily"
```

## Get Artifact Metadata

Endpoint:

```http
GET /api/artifacts/{id}
```

Example:

```powershell
Invoke-RestMethod "http://127.0.0.1:8001/api/artifacts/a1b2c3d4"
```

## Update Artifact Metadata

Endpoint:

```http
PATCH /api/artifacts/{id}
Content-Type: application/json
Authorization: Bearer dev-token
```

Editable fields:

| Field | Notes |
|---|---|
| `title` | Must not be blank. |
| `tags` | Array or comma-separated string. |
| `source_prompt` | String. |
| `source_type` | `agent`, `person`, or `system`. |
| `source_name` | String. |
| `source_id` | String. |
| `metadata` | Object. Replaces existing metadata. |

Not editable yet:

| Field | Reason |
|---|---|
| `content` | Content replacement/revisions are intentionally deferred. |
| `persona` | Affects storage layout and feed identity. |
| `kind` | Affects renderer and storage behavior. |
| `day` | Affects time-ordered feed and storage layout. |

PowerShell example:

```powershell
$body = @{
  title = "Morning Brief - Reviewed"
  tags = @("brief", "daily", "reviewed")
  metadata = @{
    model = "gpt-5.5"
    run_id = "brief-001"
    reviewed = $true
  }
} | ConvertTo-Json -Depth 5

Invoke-RestMethod `
  -Uri "http://127.0.0.1:8001/api/artifacts/a1b2c3d4" `
  -Method Patch `
  -Headers @{ Authorization = "Bearer dev-token" } `
  -ContentType "application/json" `
  -Body $body
```

## Rendered And Raw Content

Rendered browser view:

```http
GET /a/{id}
```

Raw/source view:

```http
GET /a/{id}?raw=1
```

Raw currently exists for:

| Kind | Raw content |
|---|---|
| `markdown` | Preserved `.md` source. |
| `html_full` | Stored HTML file served as text. |

If raw content is unavailable, Daybook returns a small HTML fallback page.

## Capabilities

Endpoint:

```http
GET /api/capabilities
```

Example response:

```json
{
  "artifact_kinds": ["html_fragment", "html_full", "markdown", "deck", "image", "pdf", "binary"],
  "filters": ["persona", "day", "tag", "kind", "q"],
  "views": ["rendered", "raw"],
  "raw_supported_for": ["markdown", "html_full"],
  "source_types": ["agent", "person", "system"],
  "auth": "bearer_token"
}
```

Agents should call this endpoint if they need to adapt to the current Daybook instance.

## Current MVP Constraints

- A single shared ingest token is used: `dev-token`.
- Reader/browser authentication is not implemented.
- Content modification/revisions are deferred.
- Office document conversion is not implemented.
- Manual browser upload/drag-and-drop is deferred.
- Pagination/cursors are not implemented yet.