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hard-eng: Skill for Claude Code

.agents/skills/he-build/SKILL.md

he-build is a skill for Claude Code, Codex from sgaabdu4/hard-eng. It costs 51 tokens per session (1,277 once invoked), scanned A, original, no licence file.

A workflow for local coding agents that keeps an accepted brief as an instruction ledger and checks every item before changing or resuming work.

In plain words
What is it for?
It is for tracking agreed requirements, reconciling them before each change, and proving that every ledger item has been handled.
Why use it?
It helps prevent required instructions from being forgotten or left unverified during implementation.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing. Also seen: installed under .agents/ (shared by several agents).

This is sgaabdu4/hard-eng's own configuration. It tells Claude Code and Codex how to work on hard-eng itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything hard-eng configures →

not rated 6repo +1 changed today A scan 51 tokens original no licence
View source ↗ sgaabdu4/hard-eng
Reuse

Borrowing it

Nothing to install: this file belongs to sgaabdu4/hard-eng. 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/sgaabdu4/hard-eng/main/.agents/skills/he-build/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/sgaabdu4/hard-eng

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 he-build

README.md
[![agentmods](https://agentmods.dev/badge/skills/sgaabdu4/hard-eng/he-build/github.svg)](https://agentmods.dev/skills/sgaabdu4/hard-eng/he-build)
Your own site
<a href="https://agentmods.dev/skills/sgaabdu4/hard-eng/he-build"><img src="https://agentmods.dev/badge/skills/sgaabdu4/hard-eng/he-build/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 he-build

Your own site · 80×15
<a href="https://agentmods.dev/skills/sgaabdu4/hard-eng/he-build"><img src="https://agentmods.dev/badge/skills/sgaabdu4/hard-eng/he-build.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,277 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 $0.00051 $0.01277
Opus 5.5 $0.00020 $0.00511
Sonnet 5.5 $0.00010 $0.00255
Haiku 4.5 $0.00005 $0.00128

Measured today against content hash 31e021fef041, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

he-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.

.agents/skills/he-build/SKILL.md · 49 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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 31e021fef041
  2. 7d ago Changed · +1 lines a3a87bab8d81
  3. 20d ago Changed · +2 lines e53c807ee0f3
  4. 22d ago Changed 1de6f28db41e
  5. 1mo ago Changed 64b73f1de0e0
  6. 1mo ago Changed a08293c120de
  7. 1mo ago Changed 547478e49514
  8. 1mo ago Changed e414e11e2614
  9. 1mo ago Changed · +42 lines · +51 tokens per session f77a96d20c3f
  10. 2mo ago First seen · 4 lines · 0 tokens per session scan A 0e01aed47849

Subscribe to this mod's changes

he-build is a skill published in the GitHub repository sgaabdu4/hard-eng (6 stars, last pushed today), with no licence file. It adds 51 tokens to every session and 1,277 once invoked, about $0.0002 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 2026-08-30.

GuardrailsPlanningagentic-workflowai-agentscodexengineering-workflowhard-eng
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