Writing Specs

SkillDev tools

Use when a workflow step drafts or revises a spec artifact — a goal-and-requirements, an architecture, or a module SPEC — or when a workflow skill names it at such a step. The shared quality bar for specs — not a workflow, nothing to execute.

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the Writing Specs skill

What this skill tells your AI

The instructions your AI receives, as published by jetbrains/thinkrail in packages/pi-thinkrail-workflow/skills/writing-specs/SKILL.md and read by ahel’s review.

The workflow family's shared bar for every spec a workflow produces: short, honest, on-rails. Process skills name this concept at the steps that draft or revise specs; what to draft and when stays with the referencing skill. Graph mechanics — frontmatter, link kinds, the spec_* tools — are the spec-graph skill's ground; this concept carries the quality bar the family holds on top of them, and is where the family's rules for specs and the spec graph accrue.

Short

  • Small enough to read in one sitting. Target signal, not completeness.
  • Explain intent, not inventory: what the thing is for, what it owns, where its boundary runs — never a file listing or a restatement of the code.

Honest

  • Only settled content appears. Never pad with [TBD] or placeholder sections — a section that hasn't been settled simply doesn't exist yet.
  • Anything inferred rather than confirmed is marked unconfirmed, inline, where it stands.
  • New and inferred specs are status: draft until the user has reviewed them — the flip out of draft follows the user's review, never the drafting agent's own judgment.

On-rails

  • High-signal enough that a future agent (or human) lands on the decisions without re-deriving them.
  • The spec is the only home for rationale: decisions, invariants, trade-offs, and bug post-mortems are recorded here, never as code comments — a rationale paragraph found in code is content to promote into the owning spec, leaving at most a one-line pointer where misediting would silently break something.
  • Say each thing once: link by id instead of restating; the dependency edges between sibling modules live in the parent's spec, not in each leaf.
  • One spec per genuine boundary — not per directory, not per file.

Signals

GitHub stars
459
Forks
36
Last commit
Sep 2026
Advanced
Catalog kind
skill
Gateway key
writing-specs
Source
github.com/jetbrains/thinkrail