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character-sim

character-sim is an agent for Claude Code from haowjy/creative-writing-skills. It costs 40 tokens per session (218 once invoked), scanned A, original, Apache-2.0.

An agent that holds conversations in a chosen character for exploring voice and testing relationships.

In plain words
What is it for?
Use it for character-based conversations, voice discovery, and relationship testing.
Why use it?
It gives you a way to examine how a character sounds and how a relationship may work through dialogue.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: model in frontmatter.

not rated 567repo +13 changed 9d ago A scan 40 tokens original Apache-2.0

Good fit Use it for character-based conversations, voice discovery, and relationship testing.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/haowjy/creative-writing-skills/character-sim
View source ↗ haowjy/creative-writing-skills
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.

Clone the repo
git clone --depth 1 https://github.com/haowjy/creative-writing-skills

Made for: Claude Code.

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 character-sim

README.md
[![agentmods](https://agentmods.dev/badge/agents/haowjy/creative-writing-skills/character-sim/github.svg)](https://agentmods.dev/agents/haowjy/creative-writing-skills/character-sim)
Your own site
<a href="https://agentmods.dev/agents/haowjy/creative-writing-skills/character-sim"><img src="https://agentmods.dev/badge/agents/haowjy/creative-writing-skills/character-sim/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 character-sim

Your own site · 80×15
<a href="https://agentmods.dev/agents/haowjy/creative-writing-skills/character-sim"><img src="https://agentmods.dev/badge/agents/haowjy/creative-writing-skills/character-sim.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 218 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 $0.00040 $0.00218
Opus 5.5 $0.00016 $0.00087
Sonnet 5.5 $0.00008 $0.00044
Haiku 4.5 $0.00004 $0.00022

Measured 9d ago against content hash ee85e6314386, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

character-sim 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 9d 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.

agents/character-sim.md · 34 lines

What it actually says

Character Simulation

Use /character-sim.

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. 9d ago Changed · +26 tokens per session ee85e6314386
  2. 13d ago Changed · -1 lines fca0b3d410e9
  3. 19d ago Changed · +1 lines 2374829c1693
  4. 22d ago Changed · -8 lines f502f5e75a45
  5. 2mo ago First seen · 42 lines · 14 tokens per session scan A eb31b73a5e0f

Subscribe to this mod's changes

character-sim is an agent published in the GitHub repository haowjy/creative-writing-skills (567 stars, last pushed 9d ago), licensed Apache-2.0. It adds 40 tokens to every session and 218 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.

Building agents
Related

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character-sim next to 6 agents from other repositories
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.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginnersAgent79k4d agoMITA33Claude Code
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AVM Owner Triagegithub/awesome-copilotAgent41kyesterdayMITA61Claude Code
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