# Prompt Sharpener > Sharpen a rough prompt into a precise one - same intent, sharper not longer - then execute the sharpened version immediately in the same turn. - **Type:** Skill - **Install:** `agentstack add skill-giang6283623-minimal-vibe-coding-kit-prompt-sharpener` - **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior - **Seller:** [giang6283623](https://agentstack.voostack.com/s/giang6283623) - **Installs:** 0 - **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills) - **Latest version:** 0.1.0 - **License:** MIT - **Upstream author:** [giang6283623](https://github.com/giang6283623) - **Source:** https://github.com/giang6283623/minimal-vibe-coding-kit/tree/main/.claude/skills/prompt-sharpener ## Install ```sh agentstack add skill-giang6283623-minimal-vibe-coding-kit-prompt-sharpener ``` Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent. ## About # Prompt Sharpener The text the user types after the invocation is the **raw prompt**. Upgrade it into a prompt that is **sharper, not longer** - keep the original intent, constraints, and language - then execute the upgraded version immediately in the same turn. No text after the invocation → ask the user what they want and stop. ## Step 1 - Diagnose the raw prompt Scan for every ailment below; each ailment found gets its cure applied directly in the upgraded prompt. Cure silently; call out a cure only when it could shift the user's intent. - Vague verbs or adjectives ("help me", "make it nicer") → concrete, measurable operations and parameters. - Two tasks in one prompt → split into an explicit execution order. - No success criteria → add a binary pass/fail `Done when`. - Emotional description ("everything is broken") → extract the specific technical symptom. - "The whole app" scope → pin exact files/functions/directories; coding tasks always get a **scope lock** (edit only inside X, leave the rest untouched). - Relies on memory of an old session → copy the decisions already settled in this conversation (stack, architecture, what was tried and failed) into the `Context` block. - Invitation to fabricate ("what do experts say about X?") → anchor grounding: state only what can be verified; when unsure, say so explicitly. - No output format → fix the structure and length; when the format is hard to describe in words, include 2-3 sample examples (including an edge case) in the `Output Contract`. Done when: the raw prompt has been checked against the full list and no ailment is left without its cure in the upgraded prompt. ## Step 2 - Build the upgraded prompt Classify the task (coding / research / writing / analysis / planning / review), then assemble blocks in this order - add a block only when it raises precision; small tasks need just 2-3 blocks: `Objective` → `Context` → `Work Style` → `Tool Rules` → `Output Contract` → `Verification` → `Done Criteria` Focus per task type: - Coding: scope lock, smallest correct change, validation after the edit - default to the `validate` command in `backbone.yml` when the repo has one. - Research: source quality, citations, explicit uncertainty. - Writing: audience, voice, length. - Review: group findings by severity, name the failure mode. Construction rules: - Write constraints with the strongest signal words: MUST instead of "should", NEVER instead of "avoid". - Missing information → state the assumption in `Context` and keep going; stop to ask only when the task is destructive or irreversible. - Say _what_ to verify; let the model regulate its own depth of thought. - Repo work MUST respect `backbone.yml` conventions and protected paths; when the upgraded task is a large decomposition or a risky decision, its `Work Style` block may direct Step 3 to open with the `sequential-thinking` or `clearthought` skill. - Closing audit: reread every sentence; if cutting it would not change the output, cut it - every remaining word is **load-bearing**. Done when the upgraded prompt scores on all 6 points: intent preserved - ambiguity reduced - right depth - clear output - has verification - has a stopping point. ## Step 3 - Present and execute Print the upgraded prompt in a single code block, with at most 2 sentences on the key changes. Then treat it as the user's official request: start executing immediately in the same turn, researching and editing according to its own `Tool Rules`. Done when the upgraded prompt's `Done Criteria` are satisfied. ## Source & license This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code. - **Author:** [giang6283623](https://github.com/giang6283623) - **Source:** [giang6283623/minimal-vibe-coding-kit](https://github.com/giang6283623/minimal-vibe-coding-kit) - **License:** MIT Install and usage instructions live in the source repository linked above. ## Pricing - **Free** — Free ## Security capabilities Automated source analysis of v0.1.0 — what this tool can access: - **Network access:** no - **Filesystem access:** no - **Shell / process execution:** no - **Environment & secrets:** no - **Dynamic code execution:** no *"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.* ## Versions - **0.1.0** — security scan: passed — Imported from the upstream source. ## Links - Listing page: https://agentstack.voostack.com/l/skill-giang6283623-minimal-vibe-coding-kit-prompt-sharpener - Seller: https://agentstack.voostack.com/s/giang6283623 - Browse the marketplace: https://agentstack.voostack.com/browse --- Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.