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houdini-lookdev

houdini-lookdev is a skill for Claude Code from dcc-mcp/dcc-mcp-houdini. It costs 64 tokens per session (696 once invoked), scanned A, original, MIT.

A Houdini toolkit for editing shader networks, the connected nodes that control how surfaces look, and for storing material parameter snapshots.

In plain words
What is it for?
Use it to list materials and assignments, read or set shader parameters, connect or disconnect shader inputs, reset materials, and save, load, list, or delete evaluated parameter presets.
Why use it?
It helps inspect and change shader parameters and connections while accounting for differences between Houdini shader types such as MaterialX and Principled Shader.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

not rated 12repo +1 yesterday A scan 64 tokens original MIT

Good fit Use it to list materials and assignments, read or set shader parameters, connect or disconnect shader inputs, reset materials, and save, load, list, or delete evaluated parameter presets.

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Install with agentmods
npx agentmods add skills/dcc-mcp/dcc-mcp-houdini/houdini-lookdev
View source ↗ dcc-mcp/dcc-mcp-houdini pypi.org
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add dcc-mcp/dcc-mcp-houdini --skill houdini-lookdev
Clone the repo
git clone --depth 1 https://github.com/dcc-mcp/dcc-mcp-houdini

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for houdini-lookdev

README.md
[![agentmods](https://agentmods.dev/badge/skills/dcc-mcp/dcc-mcp-houdini/houdini-lookdev/github.svg)](https://agentmods.dev/skills/dcc-mcp/dcc-mcp-houdini/houdini-lookdev)
Your own site
<a href="https://agentmods.dev/skills/dcc-mcp/dcc-mcp-houdini/houdini-lookdev"><img src="https://agentmods.dev/badge/skills/dcc-mcp/dcc-mcp-houdini/houdini-lookdev/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for houdini-lookdev

Your own site · 80×15
<a href="https://agentmods.dev/skills/dcc-mcp/dcc-mcp-houdini/houdini-lookdev"><img src="https://agentmods.dev/badge/skills/dcc-mcp/dcc-mcp-houdini/houdini-lookdev.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 696 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00064 $0.00696
Opus 5 $0.00032 $0.00348
Sonnet 5 $0.00013 $0.00139
Haiku 4.5 $0.00006 $0.00070

Measured 10d ago against content hash 3aa5c6888dd6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

houdini-lookdev scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

The scan reads SKILL.md. This mod also ships 13 executable files (scripts/_lookdev_common.py, scripts/connect_shader.py, scripts/delete_preset.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

src/dcc_mcp_houdini/skills/houdini-lookdev/SKILL.md · 57 lines

What it actually says

houdini-lookdev

Typed lookdev tools that complement houdini-materials (which creates and assigns materials). Most tools are affinity: main; the filesystem-only preset tools list_presets / delete_preset are affinity: any.

Tool groups

  • lookdev-query (read-only): list_materials, list_assignments, get_material_parms, get_shader_connections.
  • lookdev-edit: set_material_parms, connect_shader, disconnect_shader (destructive), reset_material (destructive).
  • presets: save_preset, list_presets, load_preset, delete_preset — JSON files under ~/.dcc-mcp/houdini/material_presets/ (override with DCC_MCP_HOUDINI_MATERIAL_PRESET_DIR).

Context limitations

  • Karma / MaterialX: MaterialX subnets live under a matnet/mat library; pass the exact material_path (the surface output node). Parameter names differ from principledshader, so prefer get_material_parms to discover names before set_material_parms.
  • VOP networks: connect_shader / disconnect_shader operate on node input slots; use get_shader_connections to read inputNames() first.
  • Presets store evaluated parameter values only (not node graphs); loading onto a different material_type is allowed but reported as a warning.

Tracer-bullet flow

  1. houdini_materials__create_material(material_name="clay")
  2. get_material_parms("/mat/clay") → discover parm names
  3. set_material_parms("/mat/clay", {"basecolor": [0.8,0.4,0.2], "rough": 0.6})
  4. houdini_materials__assign_material("/obj/geo1", "/mat/clay")
  5. save_preset("/mat/clay", "warm_clay") → load_preset onto another material
Files

What ships with it

14 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 57 lines · 64 tokens per session scan A 3aa5c6888dd6

Subscribe to this mod's changes

houdini-lookdev is a skill published in the GitHub repository dcc-mcp/dcc-mcp-houdini (12 stars, last pushed yesterday), licensed MIT. It adds 64 tokens to every session and 696 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Creative and mediaai-agentsdcchoudinimcpmodel-context-protocolprocedural-generation
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