build

build is a command for coding agents from klh/speedy-claude. It costs 14 tokens per session (241 once invoked), scanned A, a copy of build, MIT.

A command for implementing the next planned coding task in small steps: write a failing test, add the minimum implementation, run tests and the build, then commit the result. TDD, or test-driven development, means writing the expected behavior as a test before the implementation.

In plain words
What is it for?
Following an implementation plan, developing with tests first, checking the full test suite and compilation, recovering from failures, and recording each completed increment in Git.
Why use it?
It provides a repeatable way to make incremental changes and catch regressions before moving on to the next task.

Command

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.

agentmods
npx agentmods add commands/klh/speedy-claude/build
Clone the repo
git clone --depth 1 https://github.com/klh/speedy-claude

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 build

README.md
[![agentmods](https://agentmods.dev/badge/commands/klh/speedy-claude/build.svg)](https://agentmods.dev/commands/klh/speedy-claude/build)
Your own site
<a href="https://agentmods.dev/commands/klh/speedy-claude/build"><img src="https://agentmods.dev/badge/commands/klh/speedy-claude/build.svg" alt="Measured on agentmods" height="20"></a>
Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 241 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00014 $0.00241
Opus 5 $0.00007 $0.00120
Sonnet 5 $0.00003 $0.00048
Haiku 4.5 $0.00001 $0.00024

Measured today against content hash a8df089e1d0f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

build 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 today.

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.

Origin

This is a copy

100% identical to build — 8 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

commands/build.md · 19 lines

What it actually says

Invoke the klh-systematic-debugging skill if anything breaks; use ast-grep for identifier-shaped changes and sd/ambr for mechanical ones.

Pick the next pending task from the plan. For each task:

  1. Read the task's acceptance criteria
  2. Load relevant context (existing code, patterns, types)
  3. Write a failing test for the expected behavior (RED)
  4. Implement the minimum code to pass the test (GREEN)
  5. Run the full test suite to check for regressions
  6. Run the build/typecheck to verify compilation (npx tsc --noEmit / dotnet build)
  7. Commit with a descriptive message (gitleaks scans staged content — rotate anything it flags)
  8. Mark the task complete and move to the next one

Cadence rules: verify every 3rd edit to the same file (run/build then, not after the 5th). More than 5 planned changes to one file = re-read once, single whole-file Write. Every edit is syntax-checked automatically post-write; fix reported errors before continuing.

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. today Changed a8df089e1d0f
  2. 4d ago First seen · 19 lines · 14 tokens per session scan A 93754af699d8

Subscribe to this mod's changes

build is a command published in the GitHub repository klh/speedy-claude (11 stars, last pushed yesterday), licensed MIT. It adds 14 tokens to every session and 241 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to build, differing in 8 lines, and is treated as a copy.