unity-postprocess - SKILL.md Agent Skill

name: unity-postprocess description: "Modern SRP post-processing on URP/HDRP VolumeProfiles — add/remove/inspect/tune Bloom, Depth Of Field, Tonemapping, Vignette, Color Adjustments. Not for legacy PPv2. Exact signatures via GET /skills/schema."

PostProcess Skills

Modern URP / HDRP post-processing skills built on top of the SRP Volume framework. For Volume container / profile CRUD (volume_profile_create, volume_create, etc.), use the volume module.

Operating Mode

Query skills (postprocess_list_effects, postprocess_get_effect) are SkillMode.SemiAuto — they run in all three modes without grant.
Mutating skills (postprocess_add_effect, postprocess_set_parameter, postprocess_set_bloom, postprocess_set_depth_of_field, postprocess_set_tonemapping, postprocess_set_vignette, postprocess_set_color_adjustments) are SkillMode.FullAuto — under Approval they need user grant (grant triggers one server-side execute returning the result); under Auto / Bypass they execute directly.
postprocess_remove_effect carries SkillOperation.Delete and is auto-forbidden in Approval / Auto modes (NeverInSemi). Only Bypass or the user-managed Allowlist can run it.

SRP Package Stub

This module is compiled against com.unity.render-pipelines.core (SRP_CORE). When neither URP nor HDRP is installed (no SRP Core), every skill returns a stub { error: "Scriptable Render Pipeline Core package … is not installed." } (RenderPipelineSkillsCommon.NoSRP()). The stub is a diagnostic payload, not a permission denial — it does not require grant and is not treated as NeverInSemi.

Guardrails

DO NOT:

Use this module for PPv2 / com.unity.postprocessing
Use this module for general Volume container/profile management; use volume

Runtime-first rules:

Always call postprocess_list_effects before assuming an effect exists on the active pipeline
Use postprocess_get_effect or volume_get_component to inspect real parameter names before setting generic parameters
Prefer the dedicated high-frequency skills (postprocess_set_bloom, postprocess_set_depth_of_field, etc.) over guessing generic parameter names
Treat URP and HDRP parameter surfaces as similar-but-not-identical; do not reuse names blindly across pipelines

Skills

`postprocess_list_effects`

List modern SRP post-processing effects supported by the active pipeline.

`postprocess_add_effect`

Add a post-processing effect override to a VolumeProfile.

`postprocess_remove_effect`

Remove a post-processing effect override from a VolumeProfile.

`postprocess_get_effect`

Inspect a post-processing effect override.

`postprocess_set_parameter`

Set one parameter on a post-processing effect override.

`postprocess_set_bloom`

Configure Bloom.

`postprocess_set_depth_of_field`

Configure Depth Of Field.

`postprocess_set_tonemapping`

Configure Tonemapping.

`postprocess_set_vignette`

Configure Vignette.

`postprocess_set_color_adjustments`

Configure Color Adjustments.

Exact Signatures

Exact names, parameters, defaults, and returns are defined by GET /skills/schema or unity_skills.get_skill_schema(), not by this file.