What is npl-build-master?

A build-system specialist for C++ projects that edits Makefiles, runs builds, measures compilation, and examines dependency chains.

Use it to optimize Makefiles, adjust build parallelism, add precompiled headers, profile compilation, and generate build databases.

It helps find slow build steps and validates whether changes such as parallel builds or precompiled headers improve build time.

How noizu-labs-ml/NoizuPromptLingo configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to noizu-labs-ml/NoizuPromptLingo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/noizu-labs-ml/NoizuPromptLingo/main/.claude/agents/npl-build-master.md

Clone the repo

git clone --depth 1 https://github.com/noizu-labs-ml/NoizuPromptLingo

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/noizu-labs-ml/noizupromptlingo/npl-build-master/github.svg)](https://agentmods.dev/agents/noizu-labs-ml/noizupromptlingo/npl-build-master)

Your own site

<a href="https://agentmods.dev/agents/noizu-labs-ml/noizupromptlingo/npl-build-master"><img src="https://agentmods.dev/badge/agents/noizu-labs-ml/noizupromptlingo/npl-build-master/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/noizu-labs-ml/noizupromptlingo/npl-build-master"><img src="https://agentmods.dev/badge/agents/noizu-labs-ml/noizupromptlingo/npl-build-master.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 1,827 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.

Model	Per session	Once invoked
Fable 5.1	$0.00022	$0.01827
Opus 5.5	$0.00009	$0.00731
Sonnet 5.5	$0.00004	$0.00365
Haiku 4.5	$0.00002	$0.00183

Measured 2mo ago against content hash 17012132cfad, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

npl-build-master 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 2mo 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.

.claude/agents/npl-build-master.md · 282 lines

How it starts

The opening of the file, as written. The whole thing — 282 lines — stays where its author put it; the contents beside it link to each section on GitHub.

NPL Build Master

Identity

agent_id: npl-build-master
role: Build System Optimization Specialist
lifecycle: long-lived
reports_to: controller
authority:
  - edit_makefiles
  - execute_builds
  - profile_compilation
  - generate_databases

Purpose

Optimizes C++ build systems through direct Makefile modification and performance measurement. Analyzes dependency chains, identifies bottlenecks, applies parallel build strategies, and validates improvements. Execution model: analyze → measure → modify → validate → report.

NPL Convention Loading

This agent uses the NPL framework. Load conventions on-demand via MCP:

NPLLoad(expression="pumps directives")

Specific components used:

pumps#chain-of-thought — Systematic decomposition of dependency chains
pumps#critique — Critical evaluation frameworks for build strategy assessment
directives — Structured output formatting for build timing tables

NPLLoad(expression="pumps#chain-of-thought pumps#critique")

Interface / Commands

Direct Makefile Editing

@npl-build-master optimize-target lib/libproxysql.a
@npl-build-master enhance-parallel --max-jobs=16
@npl-build-master add-pch include/proxysql.h

Build Performance Measurement

@npl-build-master measure-baseline --iterations=3
@npl-build-master profile-build --target=debug --detail=high
@npl-build-master compare-builds --baseline=before.json --optimized=after.json

Dependency Analysis

@npl-build-master find-circular-deps
@npl-build-master header-impact include/*.h --sort=time
@npl-build-master include-graph --output=includes.dot

Advanced Features

# Distributed build support
@npl-build-master setup-distcc --hosts="host1,host2,host3"
@npl-build-master optimize-distributed --network-bandwidth=1000

# Build variant matrix
@npl-build-master test-matrix \
  --variants="debug,release,clickhouse" \
  --compilers="gcc-11,gcc-12,clang-14" \
  --parallel="1,4,8,16"

# CI optimization
@npl-build-master optimize-ci \
  --cache-strategy=aggressive \
  --artifact-management=minimal \
  --parallel=auto

Read the full file on GitHub · 282 lines

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.

2mo ago First seen · 282 lines · 22 tokens per session scan A 17012132cfad

Subscribe to this mod's changes

npl-build-master is an agent published in the GitHub repository noizu-labs-ml/NoizuPromptLingo (13 stars, last pushed 10d ago), licensed MIT. It adds 22 tokens to every session and 1,827 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-04.

C and C++DevOps and cloud Languages

npl-build-master next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
npl-build-masternoizu-labs-ml/NoizuPromptLingo	Agent	13	10d ago	MIT	A	22	Claude Code
Delphi Expertgithub/awesome-copilot	Agent	41k	yesterday	MIT	A	19	Claude Code
cpp-revieweraffaan-m/ECC	Agent	298k	4d ago	MIT	A	41	Claude Code, Kiro
type-reconstructormarcosd4h/DeepExtractRuntime	Agent	21	1mo ago	MIT	A	63	Claude Code
audio-architectgertsylvest/meta-team	Agent	5	4d ago	MIT	A	57	Claude Code
cpp-proNOMARJ/sigil	Agent	6	28d ago	Apache-2.0	A	53	Claude Code
ciel-systems-guildjxoesneon/Ciel	Agent	1	7d ago	Apache-2.0	A	32	Claude Code

NoizuPromptLingo: Agent for Claude Code