---
title: "POST /projects/{projectId}/pixel-density"
method: POST
path: "/projects/{projectId}/pixel-density"
---

# POST /projects/{projectId}/pixel-density

`POST /projects/{projectId}/pixel-density`

## Request

- Base URL: `https://api.caveman.so/api/v1`
- URL: `https://api.caveman.so/api/v1/projects/{projectId}/pixel-density`
- Auth: one of:
  - OAuth 2
    - Authorization code: `/api/v1/oauth/authorize`
    - Token URL: `/api/v1/oauth/token` scopes: `policy:publish_s0_s1`
  - HTTP bearer
  - API key in cookie `cave_access`
  - API key in cookie `__Secure-cave_identity.session_token`

POST /api/v1/projects/{projectId}/pixel-density on the Caveman Cloud control plane. Requires the policy:publish_s0_s1 scope. Exposed to autonomous agents as the set_pixel_density action of the caveman_project_setup tool (write access). Project settings for the bound project: semantic-cache shadowing and its options, pixel density, routing previews. Optimizations themselves are chosen per request (x-cave-optimize, x-cave-cache), not switched on here. Changing the semantic-cache threshold or TTL is refused server-side unless the caller holds policy:publish_s2_s3, which a scoped agent connection does not.

## Request body

- object
  - `level` 'conservative' | 'balanced' | 'max', required

## Response `2XX`

Successful response. Exact status depends on synchronous or durable delivery outcome.

## Other responses

- `4XX`: Structured failure. `error.code` is stable; `error.request_id` is echoed in the x-cave-request-id header.
- `5XX`: Structured failure. `error.code` is stable; `error.request_id` is echoed in the x-cave-request-id header.

---

[API](https://skmtc.dev/caveman/apis/caveman-cloud-api.md) - [All operations](https://skmtc.dev/caveman/apis/caveman-cloud-api/llms.txt) - [OpenAPI document](https://skmtc.dev/caveman/apis/caveman-cloud-api/revisions/508312d01cfc?raw)