technical-spec-template

technical-spec-template is a skill for Claude Code from cnfeat/top-pm-skills. It costs 66 tokens per session (1,362 once invoked), scanned A, original, MIT.

A template for writing technical specifications that explain a software problem, proposed solution, data model, and API design.

In plain words
What is it for?
Use it to document systems or features involving multiple systems, significant design choices, or security and compliance concerns.
Why use it?
It helps product and engineering teams agree on requirements, architecture decisions, and trade-offs before implementation.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the pm-delivery plugin — 9 skills shipped together

Good fit Use it to document systems or features involving multiple systems, significant design choices, or security and compliance concerns.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cnfeat/top-pm-skills/technical-spec-template
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 cnfeat/top-pm-skills --skill technical-spec-template
Clone the repo
git clone --depth 1 https://github.com/cnfeat/top-pm-skills

Made for: Claude Code.

Or install pm-delivery, the plugin that ships this one along with the rest of its 9 skills.

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 technical-spec-template

README.md
[![agentmods](https://agentmods.dev/badge/skills/cnfeat/top-pm-skills/technical-spec-template/github.svg)](https://agentmods.dev/skills/cnfeat/top-pm-skills/technical-spec-template)
Your own site
<a href="https://agentmods.dev/skills/cnfeat/top-pm-skills/technical-spec-template"><img src="https://agentmods.dev/badge/skills/cnfeat/top-pm-skills/technical-spec-template/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 technical-spec-template

Your own site · 80×15
<a href="https://agentmods.dev/skills/cnfeat/top-pm-skills/technical-spec-template"><img src="https://agentmods.dev/badge/skills/cnfeat/top-pm-skills/technical-spec-template.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,362 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 $0.00066 $0.01362
Opus 5 $0.00033 $0.00681
Sonnet 5 $0.00013 $0.00272
Haiku 4.5 $0.00007 $0.00136

Measured 5d ago against content hash 25c363935b66, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

technical-spec-template 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 5d 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.

参考skill/pm-claude-skills-main/pm-claude-skills-main/plugins/pm-delivery/skills/technical-spec-template/SKILL.md · 158 lines

How it starts

The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Technical Spec Template Skill

Write technical specifications that engineers actually read — clear problem framing, unambiguous requirements, explicit decisions, and documented trade-offs.

Required Inputs

Ask the user for these if not provided:

  • Feature or system description (what needs to be specced)
  • Related PRD or product brief (if available)
  • Engineering reviewers (whose sign-off is needed)
  • Known constraints (technical limitations, security requirements, performance targets)

When to Write a Tech Spec

Write a tech spec when:

  • The feature requires changes to 2+ systems
  • There are significant architectural decisions to make
  • More than one engineer will work on the implementation
  • The feature has security, privacy, or compliance implications
  • Estimated effort is >5 story points

Skip the spec for trivial bug fixes or 1-2 hour changes.


Technical Spec Output Format

Technical Specification — [Feature Name]

Author: [Name] Status: Draft | In Review | Approved | Implemented Created: [Date] | Last Updated: [Date] Reviewers: [Eng Lead, Architect, PM, Security if needed] Related PRD: [Link] | Jira Epic: [Link]


1. Problem Statement

[2–3 sentences. What problem are we solving and why now? No solution language here.]

2. Goals & Non-Goals

Goals (in scope):

  • [Specific, measurable outcome]
  • [Specific, measurable outcome]

Non-Goals (explicitly out of scope):

  • [What this spec does NOT cover]
  • [Common assumption to shut down early]
3. Background & Context

[Any prior art, related systems, or context engineers need to understand the decision space. Link to previous specs, ADRs, or research.]

4. Proposed Solution

High-Level Approach: [2–4 sentences describing the chosen solution. Why this approach vs alternatives?]

System Architecture Diagram: [Describe or embed: which services are involved, how data flows, what APIs are called]

Data Model Changes:

-- New tables or schema changes
[Include DDL or schema definition]

Read the full file on GitHub · 158 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. 5d ago First seen · 158 lines · 66 tokens per session scan A 25c363935b66

Subscribe to this mod's changes

technical-spec-template is a skill published in the GitHub repository cnfeat/top-pm-skills (48 stars, last pushed 2mo ago), licensed MIT. It adds 66 tokens to every session and 1,362 once invoked, about $0.0003 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 2026-09-03.

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