What is pi-customization?

Guidance for customizing Pi, a terminal coding agent, including its themes, keyboard shortcuts, reusable prompt templates, system instructions, and settings.

Use it to change Pi’s colors, keybindings, prompt commands, system prompt behavior, or settings for a project or your user account.

It explains where these customizations live and how they work, so you can change Pi without guessing at its configuration format.

pi-customization — Skill for Claude Code by romiluz13: Guidance for customizing Pi, a terminal coding agent, including…

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/romiluz13/pi-agent-skills/pi-customization

Any agent

npx skills add romiluz13/pi-agent-skills --skill pi-customization

Clone the repo

git clone --depth 1 https://github.com/romiluz13/pi-agent-skills

Made for: Claude Code.

Or install pi-skill, the plugin that ships this one along with the rest of its 11 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/romiluz13/pi-agent-skills/pi-customization.svg)](https://agentmods.dev/skills/romiluz13/pi-agent-skills/pi-customization)

Your own site

<a href="https://agentmods.dev/skills/romiluz13/pi-agent-skills/pi-customization"><img src="https://agentmods.dev/badge/skills/romiluz13/pi-agent-skills/pi-customization.svg" alt="Measured on agentmods" height="20"></a>

Per session 104 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 999 The whole file, excluding the scripts and references it only reads on demand.

Security scan C 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00104	$0.00999
Opus 5	$0.00052	$0.00500
Sonnet 5	$0.00021	$0.00200
Haiku 4.5	$0.00010	$0.00100

Measured 6d ago against content hash 68eb3e6ae9cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade C, and why

pi-customization scanned grade C with 1 finding 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 6d 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.

Instruction-override phrasinghighPrompt injection

Text telling the model to disregard its earlier instructions or safety rules is the shape of a prompt injection, whoever wrote it.

- **Override the System Prompt**: Create `.pi/SYSTEM.md` in the project or `~/.pi/agent/SYSTEM.md` globally to replace the default system prompt. Use `APPEND_SYSTEM.md` at the same locations if you want to append custom

pi-skills/pi-customization/SKILL.md · 36 lines

How it starts

The opening of the file, as written. The whole thing — 36 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pi Customization

Grounding

pi-mono/packages/coding-agent/docs/themes.md — theme JSON format (name, optional vars, required 51 colors tokens), locations (~/.pi/agent/themes/*.json, .pi/themes/*.json, packages, settings, CLI --theme), hot reload, color value formats.
pi-mono/packages/coding-agent/docs/keybindings.md — customization via ~/.pi/agent/keybindings.json, namespaced action IDs (tui.input.submit, tui.editor.cursorUp, app.interrupt, etc.), key format (modifier+key), full action tables.
pi-mono/packages/coding-agent/docs/prompt-templates.md — Markdown snippets invoked via /name, locations (~/.pi/agent/prompts/*.md, .pi/prompts/*.md, packages), positional arguments ($1, $2, $@, ${@:N}), YAML frontmatter with optional description.
pi-mono/packages/coding-agent/README.md — Context Files section for .pi/SYSTEM.md, ~/.pi/agent/SYSTEM.md, and APPEND_SYSTEM.md.
pi-mono/packages/coding-agent/docs/settings.md — the overall settings.json structure for tying these together.

Invariants

Theme Format: Themes define name (required, unique), optional vars for reusable color aliases, and all 51 colors tokens. There is no type, ui, syntax, or borders top-level key — everything is under colors. Loaded from ~/.pi/agent/themes/*.json (global) and .pi/themes/*.json (project).
Keybinding Config: Keybindings are configured in ~/.pi/agent/keybindings.json (not settings.json). IDs are namespaced: tui.input.submit (submit), tui.editor.cursorUp, app.interrupt, etc. Run /reload to apply changes without restarting.
Prompt Template Arguments: Templates use $1, $2, $@, ${@:N} positional syntax — not {variable} or <include>. The filename (minus .md) becomes the /name command.
System Prompt Override: Replace the default system prompt with .pi/SYSTEM.md (project) or ~/.pi/agent/SYSTEM.md (global). Use APPEND_SYSTEM.md to append instead of replace. Context files and skills are still appended after the override.

Read the full file on GitHub · 36 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

references/CORPUS.md 427 B

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.

6d ago First seen · 36 lines · 104 tokens per session scan C 68eb3e6ae9cb

Subscribe to this mod's changes

pi-customization is a skill published in the GitHub repository romiluz13/pi-agent-skills (18 stars, last pushed 4mo ago), licensed MIT. It adds 104 tokens to every session and 999 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it C with 1 finding (instruction-override phrasing). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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