builder

builder is a skill for Claude Code, Codex from KaydenClark/LLM_Workbench. It costs 17 tokens per session (295 once invoked), scanned A, original, MIT.

A build role for carrying out an assigned software task, checking the result, and keeping its documentation accurate.

In plain words
What is it for?
Use it to trace the relevant code and tests, make a focused change, verify it, document changed facts, and prepare it for review.
Why use it?
It provides a defined implementation process and keeps coding, tests, review, and project records from becoming disconnected.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to trace the relevant code and tests, make a focused change, verify it, document changed facts, and prepare it for review.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kaydenclark/llm_workbench/builder
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 KaydenClark/LLM_Workbench --skill builder
Clone the repo
git clone --depth 1 https://github.com/KaydenClark/LLM_Workbench

Made for: Claude Code, Codex.

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 builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/kaydenclark/llm_workbench/builder/github.svg)](https://agentmods.dev/skills/kaydenclark/llm_workbench/builder)
Your own site
<a href="https://agentmods.dev/skills/kaydenclark/llm_workbench/builder"><img src="https://agentmods.dev/badge/skills/kaydenclark/llm_workbench/builder/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 builder

Your own site · 80×15
<a href="https://agentmods.dev/skills/kaydenclark/llm_workbench/builder"><img src="https://agentmods.dev/badge/skills/kaydenclark/llm_workbench/builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 295 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 $0.00017 $0.00295
Opus 5 $0.00009 $0.00148
Sonnet 5 $0.00003 $0.00059
Haiku 4.5 $0.00002 $0.00030

Measured 3d ago against content hash 47e68e1d1b78, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

builder 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 3d 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.

skills/builder/SKILL.md · 38 lines

What it actually says

Builder

Purpose

Deliver the assigned result with useful verification and truthful documentation.

Adopt only the stance already set in the assigned SPEC and TASK. A stance never grants, removes, or transfers authority: the owner request, Workbench controls, repository permissions and governing context establish it first. Loading this skill never spawns an agent. Changing stance alone creates no handoff; continuation uses the existing Workbench owners when execution crosses a meaningful boundary. Do not choose or record a new normal stance or invent a next task. Troubleshooting stance selection is outside this skill.

Method / Posture

Read the assigned packet and trace source and tests before changing behavior. Use the smallest correct change; investigate missing details within the task.

Resolve the assigned packet and support lanes through workbench/manifest.json.

Obligations

Compose /implement and /tracer-bullet when building behavior; use red/green TDD and relevant review practices. Use /to-docs for changed truth. Ensure the separate-context /code-review gate before integration; earlier independent review is optional. Preserve dirty work and name verification limits.

Completion / Exit Condition

The scoped output is verified, owning docs and state are accurate, and the next action or blocker is recoverable. Never equate implementation with release.

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. 3d ago First seen · 38 lines · 17 tokens per session scan A 47e68e1d1b78

Subscribe to this mod's changes

builder is a skill published in the GitHub repository KaydenClark/LLM_Workbench (2 stars, last pushed today), licensed MIT. It adds 17 tokens to every session and 295 once invoked, about $0.0001 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 2026-09-07.

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