customize

A buddy customization tool for changing a companion’s species, personality, name, and five stats while keeping its progress. It stores the updated build in the buddy’s local profile.

In plain words
What is it for?
Use it to change species or personality, rename the buddy, reroll its stats, or create a custom build.
Why use it?
It removes the need to edit the profile file by hand when you want to change how your buddy looks or behaves. Existing experience, levels, and achievements are preserved.

Skill for Claude CodeCodex

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/frankfmy/buddy-evolution/customize
Any agent
npx skills add FrankFMY/buddy-evolution --skill customize
Clone the repo
git clone --depth 1 https://github.com/FrankFMY/buddy-evolution

Made for: Claude Code, Codex.

Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 753 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 $0.00043 $0.00753
Opus 5 $0.00022 $0.00377
Sonnet 5 $0.00009 $0.00151
Haiku 4.5 $0.00004 $0.00075

Measured 2d ago against content hash 6b715db2d9f2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

customize 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.

skills/customize/SKILL.md · 58 lines

How it starts

The opening of the file, as written. The whole thing — 58 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Customize Buddy

Let the user fully customize their companion. All progression (XP, level, achievements) is preserved.

Instructions

  1. Read ~/.buddy-evolution/soul.json

  2. Show current build:

    Current: {emoji} {name} — {rarity} {species} ({personality})
    Stats: DBG {n} | PAT {n} | CHS {n} | WIS {n} | SNK {n}
    
  3. Ask what they want to change. Options:

    • Species: duck, goose, blob, snail, cat, rabbit, owl, penguin, turtle, octopus, axolotl, ghost, robot, dragon, capybara, mushroom, cactus, chonk
    • Personality: analytical, curious, playful, stoic, enthusiastic, sarcastic, gentle, bold, mischievous, protective, dreamy, methodical
    • Name: any string
    • Stats: 5 stats (DEBUGGING, PATIENCE, CHAOS, WISDOM, SNARK). Each 1-100. Must have one peak (70-100) and one dump (1-20).
  4. When the user confirms, edit ~/.buddy-evolution/soul.json:

    • Change identity.species, identity.personality, identity.name as requested
    • Update identity.emoji to match species: duck🦆 goose🦢 blob👾 snail🐌 cat🐱 rabbit🐰 owl🦉 penguin🐧 turtle🐢 octopus🐙 axolotl🦎 ghost👻 robot🤖 dragon🐉 capybara🐾 mushroom🍄 cactus🌵 chonk🐻
    • Update identity.rarity to match species: common: duck, goose, blob, snail | uncommon: cat, rabbit, owl, penguin | rare: turtle, octopus, axolotl | epic: ghost, robot, dragon | legendary: capybara, mushroom, cactus, chonk
    • If stats changed, update stats.base (do NOT touch stats.growth — that's earned)
    • If species changed and evolutionPath is not empty, warn that evolution will reset
    • Do NOT change progression, achievements, lifetime, familiarity, streak
  5. Confirm: "Customized! {emoji} {name} the {species} ({personality}) — takes effect next session."

Personality descriptions

Personality Style
analytical precise, data-driven, references metrics
curious asks follow-ups, explores tangents
playful light humor, wordplay, fun
stoic minimal, focused, essential only
enthusiastic high energy, encouraging, celebrates wins
sarcastic dry wit, friendly teasing
gentle warm, supportive, no pressure
bold confident, direct, pushes forward
mischievous teasing, surprises, unpredictable
protective watches out, reminds about breaks
dreamy philosophical, big picture
methodical organized, step-by-step

Read the full file on GitHub · 58 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 · 58 lines · 43 tokens per session scan A 6b715db2d9f2

Subscribe to this mod's changes

customize is a skill published in the GitHub repository FrankFMY/buddy-evolution (5 stars, last pushed 5mo ago), licensed MIT. It adds 43 tokens to every session and 753 once invoked, about $0.0002 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.

Related

Other skills, from other repositories