spec-to-implementation

spec-to-implementation is a skill for Claude Code from tommy-ca/notion-skills. It costs 17 tokens per session (938 once invoked), scanned A, original, MIT.

A planning guide that turns a project specification into an implementation plan tracked in Notion. It breaks requirements into tasks, maps dependencies, estimates effort, assigns ownership, and records risks.

In plain words
What is it for?
Use it to plan features, create technical specifications, build task checklists and timelines, assign work, and track implementation progress in Notion.
Why use it?
It turns broad requirements into a concrete sequence of work with clear responsibilities and progress tracking. This makes missing dependencies and acceptance criteria easier to spot.

Skill for Claude Code

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

Part of the notion-skills plugin — 4 skills shipped together

Good fit Use it to plan features, create technical specifications, build task checklists and timelines, assign work, and track implementation progress in Notion.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tommy-ca/notion-skills/spec-to-implementation
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 tommy-ca/notion-skills --skill spec-to-implementation
Clone the repo
git clone --depth 1 https://github.com/tommy-ca/notion-skills

Made for: Claude Code.

Or install notion-skills, the plugin that ships this one along with the rest of its 4 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 spec-to-implementation

README.md
[![agentmods](https://agentmods.dev/badge/skills/tommy-ca/notion-skills/spec-to-implementation/github.svg)](https://agentmods.dev/skills/tommy-ca/notion-skills/spec-to-implementation)
Your own site
<a href="https://agentmods.dev/skills/tommy-ca/notion-skills/spec-to-implementation"><img src="https://agentmods.dev/badge/skills/tommy-ca/notion-skills/spec-to-implementation/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 spec-to-implementation

Your own site · 80×15
<a href="https://agentmods.dev/skills/tommy-ca/notion-skills/spec-to-implementation"><img src="https://agentmods.dev/badge/skills/tommy-ca/notion-skills/spec-to-implementation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 938 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 $0.00017 $0.00938
Opus 5 $0.00009 $0.00469
Sonnet 5 $0.00003 $0.00188
Haiku 4.5 $0.00002 $0.00094

Measured 12d ago against content hash 6d4ed506ade5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

spec-to-implementation 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 12d 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.

plugins/notion-skills/skills/spec-to-implementation/SKILL.md · 139 lines

How it starts

The opening of the file, as written. The whole thing — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Overview

The Spec-to-Implementation skill transforms project specifications into detailed implementation plans with comprehensive task breakdowns, timeline estimates, and dependency tracking in Notion. It bridges the gap between requirements and execution.

When to Use

Use this skill when you need to:

  • Convert project specifications into actionable implementation plans
  • Break down complex features into implementable tasks
  • Create detailed project timelines with estimates
  • Identify dependencies and critical path items
  • Generate task checklists with ownership and deadlines
  • Track implementation progress in Notion
  • Create architectural and technical specifications from requirements

Features

  • Smart Requirement Parsing: Automatically extracts requirements and acceptance criteria
  • Task Decomposition: Breaks specifications into atomic, implementable tasks
  • Dependency Mapping: Identifies and visualizes task dependencies
  • Effort Estimation: Provides time estimates for tasks and milestones
  • Ownership Assignment: Creates task assignments with clarity
  • Progress Tracking: Sets up Notion databases for implementation tracking
  • Risk Identification: Highlights potential implementation risks and blockers

Requirements

  • Notion API Access: For creating implementation plans and task databases
  • Specification Format: Clear specification documents (markdown, PDFs, or text)
  • Team Database: Directory of team members and skills (optional but recommended)
  • Project Template: Pre-configured Notion template for consistency

Implementation Details

This skill transforms specifications through a systematic process:

  1. Parse specification document and extract requirements
  2. Break requirements into user stories and tasks
  3. Identify technical dependencies and blockers
  4. Create detailed implementation plan with phases
  5. Estimate effort for each task
  6. Assign ownership and set deadlines
  7. Create tracking structure in Notion
  8. Generate project dashboard and status reports

Read the full file on GitHub · 139 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 12d ago First seen · 139 lines · 17 tokens per session scan A 6d4ed506ade5

Subscribe to this mod's changes

spec-to-implementation is a skill published in the GitHub repository tommy-ca/notion-skills (62 stars, last pushed 10mo ago), licensed MIT. It adds 17 tokens to every session and 938 once invoked, about $0.0001 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 2026-08-30.

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