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.
npx skills add darellchua2/opencode-config-template --skill cad-srdf-skillgit clone --depth 1 https://github.com/darellchua2/opencode-config-templateWrote 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.
[](https://agentmods.dev/skills/darellchua2/opencode-config-template/cad-srdf-skill)<a href="https://agentmods.dev/skills/darellchua2/opencode-config-template/cad-srdf-skill"><img src="https://agentmods.dev/badge/skills/darellchua2/opencode-config-template/cad-srdf-skill/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.
<a href="https://agentmods.dev/skills/darellchua2/opencode-config-template/cad-srdf-skill"><img src="https://agentmods.dev/badge/skills/darellchua2/opencode-config-template/cad-srdf-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00059 | $0.01323 |
| Opus 5 | $0.00030 | $0.00661 |
| Sonnet 5 | $0.00012 | $0.00265 |
| Haiku 4.5 | $0.00006 | $0.00132 |
Grade A, and why
cad-srdf-skill 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 7d ago.
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.
How it starts
The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SRDF
Provenance: maintained in earthtojake/text-to-cad. Use the installed local skill files as the runtime source of truth; the repository link is only for provenance and release review.
Use this skill for MoveIt semantic robot descriptions on top of an existing valid URDF. SRDF defines planning semantics; it does not define physical robot structure.
SRDF correctness is a planning semantics problem. The common failure is not invalid XML; it is a plausible SRDF that gives MoveIt the wrong planning group, wrong tool link, wrong default state, unsafe disabled-collision matrix, or wrong joint units. Because language models are weak at spatial and kinematic reasoning, derive planning groups, end effectors, group states, and disabled collisions from the URDF topology, MoveIt Setup Assistant output, sampled collision analysis, or explicit user data. Do not infer them from visual appearance alone.
Format boundary
- URDF owns physical robot structure: links, joints, geometry, inertials, limits, mimic joints, transmissions, and robot-state publishing.
- SRDF owns MoveIt semantics: virtual joints, passive joints, planning groups, group states, end effectors, and disabled collision pairs.
- SDF owns simulator/world semantics: physics, sensors, lights, plugins, worlds, and simulation-specific metadata.
Do not place geometry, inertials, joint origins, link poses, mesh references, physical joint limits, transmissions, or ros2_control interfaces in SRDF.
CAD Viewer Handoff
After completing SRDF work that creates or modifies a .srdf, you must ALWAYS hand the explicit file path to the cad-viewer-skill (load via skill tool) when that skill is installed. the cad-viewer-skill (load via skill tool) must start CAD Viewer if it is not already running and return link(s) to the relevant created or updated file(s); include optional MoveIt2 controls in the handoff only when the user needs interactive IK or path-planning review. If the cad-viewer-skill (load via skill tool) is unavailable or startup fails, report that instead of silently omitting the handoff.
What ships with it
18 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.
- LICENSE 1.0 KB
- references/disabled-collisions.md 1.8 KB
- references/end-effectors.md 2.1 KB
- references/gen-srdf.md 1.4 KB
- references/generator-contract.md 3.5 KB
- references/implementation-notes.md 2.0 KB
- references/planning-ledger.md 3.3 KB
- references/srdf-workflow.md 3.7 KB
- references/validation.md 4.7 KB
- requirements.txt 45 B
- scripts/packages/cadpy_metadata/pyproject.toml 407 B
- scripts/packages/cadpy_metadata/src/cadpy_metadata/__init__.py 416 B runs code
- scripts/packages/cadpy_metadata/src/cadpy_metadata/generator.py 7.9 KB runs code
- scripts/packages/cadpy_metadata/src/cadpy_metadata/py.typed 1 B
- scripts/srdf/__init__.py 46 B runs code
- scripts/srdf/__main__.py 363 B runs code
- scripts/srdf/cli.py 27 KB runs code
- scripts/srdf/source.py 10 KB runs code
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.
- 7d ago First seen · 84 lines · 59 tokens per session scan A 8925ccb11356
cad-srdf-skill is a skill published in the GitHub repository darellchua2/opencode-config-template (6 stars, last pushed yesterday), licensed Apache-2.0. It adds 59 tokens to every session and 1,323 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 2026-09-03.
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