personality

A command for changing the assistant’s conversational style during a session, choosing from named personalities or turning the mode off.

In plain words
What is it for?
Use it to show the current style, list available styles, choose one by name, pick another at random, disable the mode, or manage the default style.
Why use it?
It avoids having to accept one fixed style when a different tone would suit the task. It also lets you see or set the style used when new sessions begin.

Command

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 commands/bhpascal/personality-roulette/personality
Clone the repo
git clone --depth 1 https://github.com/bhpascal/personality-roulette
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,324 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 $0.00000 $0.01324
Opus 5 $0.00000 $0.00662
Sonnet 5 $0.00000 $0.00265
Haiku 4.5 $0.00000 $0.00132

Measured 2d ago against content hash 69cea9c61b2f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

personality 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.

commands/personality.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/personality-roulette:personality

Switch, reroll, or manage the current personality.

Usage

The user invoked this command. Determine what they want from the arguments:

  • No arguments: Show the current personality.
  • "reroll": Pick a new random personality different from the current one.
  • A personality name (e.g., "sea-captain", "starship-computer", "hyperintelligence", "archduke-of-hell", "noir-detective", "nature-narrator", "mission-control"): Switch to that specific personality.
  • "list": Show all available personalities with the current one highlighted.
  • "off": Disable personality mode for this session.
  • "default": Manage the default personality (see below).

Default Personality

The default personality file is ~/.claude/personality-roulette/default.txt. When set, new sessions always start with this personality instead of a random one. The user can still reroll or switch during a session.

For "default" with no further argument:

  1. Read ~/.claude/personality-roulette/default.txt.
  2. If it exists and contains a personality name, show: "Default personality: [display name]. New sessions will start with this personality. Use /personality default off to go back to random."
  3. If it doesn't exist or is empty, show: "No default set. New sessions pick a random personality. Use /personality default <name> to set one."

For "default off" or "default clear":

  1. Delete ~/.claude/personality-roulette/default.txt (or write empty string).
  2. Confirm: "Default cleared. New sessions will pick a random personality again."

For "default ":

  1. Validate the personality name exists (check custom directory first, then built-in).
  2. If not found, show available personalities and ask the user to pick one.
  3. Write the personality name (kebab-case filename without .md) to ~/.claude/personality-roulette/default.txt.
  4. Confirm: "Default set to [display name]. New sessions will start with this personality."
  5. This does NOT switch the current session -- it only affects future sessions.

Read the full file on GitHub · 86 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 · 86 lines · 0 tokens per session scan A 69cea9c61b2f

Subscribe to this mod's changes

personality is a command published in the GitHub repository bhpascal/personality-roulette (4 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,324 tokens. 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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