tech-blueprinting

tech-blueprinting is a skill for Claude Code, Codex from nanparth/ai-skill-hub. It costs 107 tokens per session (1,448 once invoked), scanned A, original, MIT.

A step-by-step workflow for creating technical documents through drafting, review, and reader testing. It also includes guidance for writing or updating READMEs, which explain how a software project works.

In plain words
What is it for?
Use it for specifications, product requirements documents, RFCs, decision records, implementation plans, development plans, and README files.
Why use it?
It gives you a repeatable way to gather context, organize a document, and check it for gaps before finishing.

Skill for Claude CodeCodex

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

Good fit Use it for specifications, product requirements documents, RFCs, decision records, implementation plans, development plans, and README files.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/nanparth/ai-skill-hub/tech-blueprinting
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 nanparth/ai-skill-hub --skill tech-blueprinting
Clone the repo
git clone --depth 1 https://github.com/nanparth/ai-skill-hub

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 tech-blueprinting

README.md
[![agentmods](https://agentmods.dev/badge/skills/nanparth/ai-skill-hub/tech-blueprinting/github.svg)](https://agentmods.dev/skills/nanparth/ai-skill-hub/tech-blueprinting)
Your own site
<a href="https://agentmods.dev/skills/nanparth/ai-skill-hub/tech-blueprinting"><img src="https://agentmods.dev/badge/skills/nanparth/ai-skill-hub/tech-blueprinting/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 tech-blueprinting

Your own site · 80×15
<a href="https://agentmods.dev/skills/nanparth/ai-skill-hub/tech-blueprinting"><img src="https://agentmods.dev/badge/skills/nanparth/ai-skill-hub/tech-blueprinting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 107 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,448 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 $0.00107 $0.01448
Opus 5.5 $0.00043 $0.00579
Sonnet 5.5 $0.00021 $0.00290
Haiku 4.5 $0.00011 $0.00145

Measured 1mo ago against content hash c689bf312b62, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tech-blueprinting 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 1mo ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/helper.js, scripts/server.cjs, scripts/start-server.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

tech-blueprinting/SKILL.md · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

⛔ GATE DISCIPLINE: host user-choice mechanism gates = hard stops. Never skip or auto-pick answer. Tool unavailable → numbered-text fallback → stop, wait for reply. No flag bypasses a gate; override flags pass only as user's recorded gate answer.

/tech-blueprinting

Release version: 2.0.0

Ground decisions and produce a reviewable brief. Default: ground → material decisions → brief → risk/contract review → handoff. Section collaboration is optional, not the default production line.

Routing

Intent Route
README, usage docs, document a skill workflows/readme-write.md, preserve Part A/B/C and source-fidelity checks
Grill, stress-test, attack a plan, adjudicate external findings workflows/grill.md, explicit request only
Implementation/dev plan Default below plus references/plan-template.md
Spec, PRD, RFC, decision or architecture document Default below; implementation-only fields only when feeding code work

Ambiguous deliverable → a structured choice prompt ⛔ BLOCKING: README (Recommended) / General technical document. Fallback: numbered options in plain text; stop and wait.

Default workflow

  • Ground ⛔ BLOCKING. Load shared doctrine and runtime adapter. Read supplied sources and existing document before editing; count lines before full reads. Establish audience, goal, impact, non-goals, destination and authority from existing context. Ask only for missing material context. Implementation docs: inspect scoped repo structure, commands, patterns, contracts, history and reuse before proposing architecture, using references/context-gathering-details.md.
  • Material decisions ⛔ BLOCKING. Present grounded findings and consequential alternatives, not a fixed brainstorm quota. Record binding constraints versus provisional approach and reference examples. Invoke a structured choice prompt: Approve direction (Recommended) / Adjust direction / Add context. Fallback: numbered options in plain text; stop and wait. Existing explicit authorization covering this direction resolves the gate: cite its source and scope, do not re-ask. Missing material decisions or changed authority still require the gate; silence or inferred intent never answers it. Default to brief drafting, not a mandatory collaboration question. If user requests a choice of collaboration mode, a structured choice prompt: Draft brief (Recommended) / Collaborate by section. Fallback: numbered options in plain text; stop and wait. Explicit section collaboration loads workflows/section-drafting-loop.md.
  • Draft brief. Cover problem, goal/non-goals, material decisions and rationale, contract boundaries, outcomes/proof, dependencies, owners and open risks. Implementation briefs use milestone contracts plus references/implementation-doc-requirements.md; no mandatory code-filled microsteps. Preserve approved exact content. Output: general Markdown written directly (or via a dedicated notes skill if installed), Word through a dedicated docx skill if installed; README route writes directly under its own workflow. Default general output a user-selected output path (e.g. ./outputs/). Scratch-only scope stays scratch; no durable save implied.
  • Risk/contract review ⛔ BLOCKING. Dispatch independent agents/spec-reviewer.md with doc_path only; resolve blocking defects. Dispatch fresh agents/reader-tester.md with doc_content, test_questions, check_mode="full", no conversation. Questions test what to build, what remains local choice, proof, failure boundaries and escalation. No independent reviewer available → report incomplete review, do not simulate independence. Revise affected sections, then rerun affected checks. Grill stays optional via its route, never silently substituted for these reviews.
  • Handoff ⛔ BLOCKING. Present brief, review evidence, unresolved decisions and exact destination. Existing explicit authorization covering delivery to that destination resolves this conversational handoff: cite source/scope and deliver without re-asking. Otherwise a structured choice prompt: Done (Recommended) / One more review. Fallback: numbered options in plain text; stop and wait. Present a visible reviewable artifact and concise decision digest before any unresolved gate; no mandatory separate-turn choreography in this default workflow. Missing material decisions, destination/save authority and publication-owner gates still block their dependent actions. Ready means material blockers resolved, not every local step prewritten. Offer /tech-implement <path> unless explicitly authorized implementation is already the next action; document approval alone is not permission to implement, commit or publish.

Read the full file on GitHub · 57 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.

  1. 1mo ago Changed · -49 lines · +22 tokens per session c689bf312b62
  2. 1mo ago First seen · 106 lines · 85 tokens per session scan A 6cb33465fa0b

Subscribe to this mod's changes

tech-blueprinting is a skill published in the GitHub repository nanparth/ai-skill-hub (23 stars, last pushed 1mo ago), licensed MIT. It adds 107 tokens to every session and 1,448 once invoked, about $0.0004 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.

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