refine

A workflow for updating an existing software specification after feedback, new information, or changed requirements. A specification is a written description of what a feature should do and how it should be accepted.

In plain words
What is it for?
Use it to refine feature specifications, review new requirements, ask focused questions, and update affected modules and acceptance criteria.
Why use it?
It helps keep a feature plan accurate as understanding changes. It also checks whether the update has become too large or affects additional parts of the project.

Skill for Claude CodeCodexCursor

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.

agentmods
npx agentmods add skills/heiko-braun/draft/refine
Any agent
npx skills add heiko-braun/draft --skill refine
Clone the repo
git clone --depth 1 https://github.com/heiko-braun/draft

Made for: Claude Code, Codex, Cursor.

Per session 7 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 628 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00007 $0.00628
Opus 5 $0.00003 $0.00314
Sonnet 5 $0.00001 $0.00126
Haiku 4.5 $0.00001 $0.00063

Measured 2d ago against content hash dc5d1f629585, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

refine 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 2d 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.

.cursor/skills/refine/SKILL.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Refine Existing Spec

Refine an existing specification based on new insights, feedback, or changing requirements.

Feature to refine: $ARGUMENTS

Instructions

  1. Load the existing spec from /specs/{feature}.md

    • If no spec exists for this feature, suggest using /spec instead
    • If multiple specs match, ask the user which one to refine
  2. Ask 2-3 focused refinement questions (one at a time):

    • What aspect needs refinement? (goals, criteria, approach, scope)
    • What new information or feedback has emerged?
    • Are there specific pain points with the current spec?
  3. Check scope and modularity:

    • Does the refinement keep the spec small enough for a single vertical slice?
    • If criteria are being added, does the total still stay at ~5 or fewer?
    • Does the refinement change which modules are affected? Update the "Affected Modules" section.
    • If the refinement significantly expands scope or blast radius, suggest a separate spec instead.
  4. Update the spec in place:

    • Preserve front-matter: Keep all existing front-matter fields (title, description, author). Keep status: proposed (refinements don't change status)
    • Preserve completed acceptance criteria checkboxes
    • Update goals, criteria, or approach as needed
    • Update "Affected Modules" and "Test Strategy" if the changes alter them
    • Add to "Out of Scope" if removing features
    • Add refinement notes to the "Notes" section with timestamp
  5. Show a diff summary:

    • Highlight what changed (goals, new criteria, removed items, affected modules, etc.)
    • Ask for confirmation before saving
  6. Get user confirmation before proceeding to implementation

    • If confirmed, use the implement skill with the refined spec
    • If not, ask if they want to refine further

Refinement Guidelines

  • Preserve progress: Don't uncheck completed criteria unless they're no longer valid
  • Be additive when possible: Add new criteria rather than rewriting existing ones
  • Document changes: Always add a timestamped note explaining what was refined and why
  • Validate scope: Check if refinements are expanding scope significantly - if so, suggest a new spec
  • Validate modularity: If the refinement introduces new module dependencies or widens the blast radius, flag it explicitly

Read the full file on GitHub · 66 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. 2d ago First seen · 66 lines · 7 tokens per session scan A dc5d1f629585

Subscribe to this mod's changes

refine is a skill published in the GitHub repository heiko-braun/draft (5 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 7 tokens to every session and 628 once invoked, about $0.0000 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 2026-08-31.

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