Prompt Refiner

Prompt Refiner is a skill for Claude Code from JoshuaRamirez/advanced-prompting-engine. It costs 101 tokens per session (8,570 once invoked), scanned A, original, MIT.

A tool for improving prompts through repeated review and rewriting. It examines a prompt from 12 different philosophical viewpoints to identify gaps.

In plain words
What is it for?
Use it to refine, measure, analyse, and rewrite prompts for a specific purpose.
Why use it?
It helps when a prompt is unclear, incomplete, or missing important considerations, so you do not have to find those weaknesses manually.

Skill for Claude Code

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

Part of the advanced-prompting-engine plugin — 1 skill, 3 commands, 1 MCP server shipped together

Good fit Use it to refine, measure, analyse, and rewrite prompts for a specific purpose.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/joshuaramirez/advanced-prompting-engine/prompt-refiner
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 JoshuaRamirez/advanced-prompting-engine --skill prompt-refiner
Clone the repo
git clone --depth 1 https://github.com/JoshuaRamirez/advanced-prompting-engine

Made for: Claude Code.

Or install advanced-prompting-engine, the plugin that ships this one along with the rest of its 1 skill, 3 commands, 1 MCP server.

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 Prompt Refiner

README.md
[![agentmods](https://agentmods.dev/badge/skills/joshuaramirez/advanced-prompting-engine/prompt-refiner/github.svg)](https://agentmods.dev/skills/joshuaramirez/advanced-prompting-engine/prompt-refiner)
Your own site
<a href="https://agentmods.dev/skills/joshuaramirez/advanced-prompting-engine/prompt-refiner"><img src="https://agentmods.dev/badge/skills/joshuaramirez/advanced-prompting-engine/prompt-refiner/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 Prompt Refiner

Your own site · 80×15
<a href="https://agentmods.dev/skills/joshuaramirez/advanced-prompting-engine/prompt-refiner"><img src="https://agentmods.dev/badge/skills/joshuaramirez/advanced-prompting-engine/prompt-refiner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 101 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,570 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 $0.00101 $0.08570
Opus 5 $0.00051 $0.04285
Sonnet 5 $0.00020 $0.01714
Haiku 4.5 $0.00010 $0.00857

Measured 10d ago against content hash 5856c4ef0822, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

Prompt Refiner 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 10d 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.

skills/prompt-refiner/SKILL.md · 462 lines

How it starts

The opening of the file, as written. The whole thing — 462 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Prompt Refiner

Iteratively refine a prompt using the Advanced Prompting Engine (APE) MCP server v0.8.0. Takes raw intent, measures it across 12 philosophical faces via a BGE-large-en-v1.5 semantic bridge (1024d, full-sentence encoding), interprets deficiencies using the interpret_basis tool, rewrites to address gaps, and repeats until the prompt achieves dimensional coverage appropriate for its purpose.

The 12 Faces

Each face is a 12x12 grid with named axis polarities. Position on each axis carries meaning.

Face X Axis (0→11) Y Axis (0→11) Core Question
Ontology Particular → Universal Static → Dynamic What entities and relationships fundamentally exist?
Epistemology Empirical → Rational Certain → Provisional How do we know domain states and conditions are true?
Axiology Absolute → Relative Quantitative → Qualitative By what criteria is worth determined?
Teleology Immediate → Ultimate Intentional → Emergent What ultimate purposes does each interaction serve?
Phenomenology Objective → Subjective Surface → Deep How are experiences represented and realized?
Ethics Deontological → Consequential Agent → Act What obligations and moral warrants govern right action?
Aesthetics Autonomous → Contextual Sensory → Conceptual What qualities of form and significance constitute recognition?
Praxeology Individual → Coordinated Reactive → Proactive How are actions, behaviors, and intentions structured?
Methodology Analytic → Synthetic Deductive → Inductive What processes govern construction and evolution?
Semiotics Explicit → Implicit Syntactic → Semantic How are signals and data meaningfully communicated?
Hermeneutics Literal → Figurative Author-intent → Reader-response What frameworks govern interpretation and understanding?
Heuristics Systematic → Intuitive Conservative → Exploratory What practical strategies guide handling of complexities?

Read the full file on GitHub · 462 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. 10d ago First seen · 462 lines · 101 tokens per session scan A 5856c4ef0822

Subscribe to this mod's changes

Prompt Refiner is a skill published in the GitHub repository JoshuaRamirez/advanced-prompting-engine (0 stars, last pushed 14d ago), licensed MIT. It adds 101 tokens to every session and 8,570 once invoked, about $0.0005 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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