tweakcc
Customize Claude Code's system prompts, create custom toolsets, input pattern highlighters, themes/thinking verbs/spinners, customize input box & user message styling, support AGENTS.md, unlock private/unreleased features, and much more. Supports both native/npm installs on all platforms. observed · 2026-08-28
Health v2 · maintenance only
80/100
- Activity 99
- Release rhythm 85
- Longevity 29
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 2.0
- age_days: 409
- days_rel: 20
- days_push: 7
- n_releases_24m: 67
Adoption not part of the score
2465 stars · 195 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
tweakcc is a command-line tool for customizing Claude Code's appearance (theme colors, thinking verbs) and inspecting or modifying its system prompts, tool descriptions, and sub-agent prompts. Its companion repository tracks the full text of Claude Code's system prompts, updated within minutes of each Claude Code release.
Use cases
- customize claude code theme colors
- change claude code thinking verbs
- view claude code system prompts
- read claude code builtin tool descriptions
- track system prompt changes across claude code versions
- customize claude code sub agent prompts
When to choose
- you use Claude Code daily and want to personalize its terminal theme and wording
- you want to study or diff Claude Code's system prompts and tool descriptions across versions
- you want a maintained, up-to-date mirror of Claude Code's prompts
When to avoid
- you don't use Claude Code or another Anthropic CLI agent
- you need a general-purpose prompt management tool for arbitrary LLM apps
- you need a GUI-based customization tool
Facets
cli-tool · maturity active
cli theme prompt-engineering developer-tools developer-tools large-language-models cli cross-platform windows claude-code system-prompts terminal-ui customization anthropic cli-agents command-line ai-agents nodejs macos linux
2 sources
- readme: https://github.com/Piebald-AI/tweakcc · fetched 2026-08-28 · b1a04cd1701a
- registry_npm: https://registry.npmjs.org/tweakcc · fetched 2026-08-29 · cdeae70535fa
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| Piebald-AI/tweakcc | main | 80 |
| Piebald-AI/claude-code-system-prompts | docs | 79 |
For agents
markdown · JSON · MCP: product_card(name="Piebald-AI/tweakcc")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem