polymorph

polymorph is a skill for Claude Code, Codex from Hmbown/Wizards-of-the-Ghosts. It costs 85 tokens per session (1,004 once invoked), scanned A, original, CC0-1.0.

A guide for converting information, code, or specifications from one structure or format into another. Examples include CSV to JSON, Python to JavaScript, or REST to GraphQL.

In plain words
What is it for?
Use it for format conversions, code-language changes, schema migrations, protocol changes, and interface conversions.
Why use it?
It clarifies the mapping needed when the source and target represent the same information in different ways. This avoids treating a real conversion as a simple rename or copy.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for format conversions, code-language changes, schema migrations, protocol changes, and interface conversions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/hmbown/wizards-of-the-ghosts/polymorph
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 Hmbown/Wizards-of-the-Ghosts --skill polymorph
Clone the repo
git clone --depth 1 https://github.com/Hmbown/Wizards-of-the-Ghosts

Made for: Claude Code, Codex.

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 polymorph

README.md
[![agentmods](https://agentmods.dev/badge/skills/hmbown/wizards-of-the-ghosts/polymorph/github.svg)](https://agentmods.dev/skills/hmbown/wizards-of-the-ghosts/polymorph)
Your own site
<a href="https://agentmods.dev/skills/hmbown/wizards-of-the-ghosts/polymorph"><img src="https://agentmods.dev/badge/skills/hmbown/wizards-of-the-ghosts/polymorph/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 polymorph

Your own site · 80×15
<a href="https://agentmods.dev/skills/hmbown/wizards-of-the-ghosts/polymorph"><img src="https://agentmods.dev/badge/skills/hmbown/wizards-of-the-ghosts/polymorph.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,004 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 $0.00085 $0.01004
Opus 5 $0.00043 $0.00502
Sonnet 5 $0.00017 $0.00201
Haiku 4.5 $0.00009 $0.00100

Measured 7d ago against content hash 2f8ab2fa9787, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

polymorph 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 7d 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.

generated/hermes/actions-access-and-automation/polymorph/SKILL.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Polymorph

Transform one representation into another entirely — formats, schemas, protocols, or interfaces.

What This Skill Does

This spell is about representation change, not:

  • Naming changes (same structure, different identifiers)
  • Execution changes (same code, different runtime)
  • Architecture changes (new system design)
  • Duplication (same thing, different place) The key test: Can you point to a source artifact and a target artifact where the same information is expressed in structurally different ways? If yes → Polymorph. In this grimoire, Polymorph is treated as a metaphorical spell with a shipping-now delivery profile. Canonical reference input: Polymorph (spell).

When To Use

  • Activate this spell when the user asks to convert, transform, or migrate data, code, or specifications from one representation format to another where the source and target have different structures and require real semantic mapping.
  • Verbs: "convert", "transform", "translate", "migrate" (between formats)
  • Explicit format pairs: "CSV to JSON", "Python to JavaScript", "REST to GraphQL", "YAML to HCL", "Swagger to OpenAPI", "Avro to JSON Schema"
  • Phrases: "preserve the structure but change the format", "map X concepts to Y", "flag what doesn't translate", "equivalent in [target format]"
  • Scope indicators: "150 test files", "50 components", "entire test suite" (still this spell if it's format conversion at scale)

Prerequisites

  • No extra runtime dependencies beyond Hermes Agent and the normal toolset for this session.

Procedure

  1. Restate the target, the success condition, and any no-touch boundaries before taking action.
  2. Identify source and target representations — name both formats explicitly
  3. Map structural correspondences — list what maps to what; identify what has no equivalent
  4. Execute transformation — convert preserving semantics; flag losses immediately
  5. Validate and report — confirm output is well-formed; document preserved, approximated, and lost elements
  6. Package the result as the deliverables below, with confidence, assumptions, and unresolved risk called out explicitly.

Read the full file on GitHub · 81 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. 7d ago First seen · 81 lines · 85 tokens per session scan A 2f8ab2fa9787

Subscribe to this mod's changes

polymorph is a skill published in the GitHub repository Hmbown/Wizards-of-the-Ghosts (107 stars, last pushed 5mo ago), licensed CC0-1.0. It adds 85 tokens to every session and 1,004 once invoked, about $0.0004 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 2026-09-03.

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