A tool for installing or removing the Coral HUD statusline in Claude Code, the coding assistant environment.

Use it to install, update, or remove the Coral HUD and configure Claude Code to run it.

It manages the files and settings needed to show that status display without overwriting another statusline silently.

statusline — Skill for Claude Code and Codex by kangig94

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.

Any agent

npx skills add kangig94/coral --skill statusline

Clone the repo

git clone --depth 1 https://github.com/kangig94/coral

Made for: Claude Code, Codex.

Or install coral, the plugin that ships this one along with the rest of its 12 skills, 10 agents.

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/kangig94/coral/statusline/github.svg)](https://agentmods.dev/skills/kangig94/coral/statusline)

Your own site

<a href="https://agentmods.dev/skills/kangig94/coral/statusline"><img src="https://agentmods.dev/badge/skills/kangig94/coral/statusline/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/kangig94/coral/statusline"><img src="https://agentmods.dev/badge/skills/kangig94/coral/statusline.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 10 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,179 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. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 2 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

high Rogue Agent · line 65
Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.

Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
medium Rogue Agent · line 22
Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.

How audits are shown

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	$0.00010	$0.01179
Opus 5	$0.00005	$0.00589
Sonnet 5	$0.00002	$0.00236
Haiku 4.5	$0.00001	$0.00118

Measured 9d ago against content hash 0f5dc652b9e8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

statusline 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.

The scan reads SKILL.md. This mod also ships 1 executable file (coral-hud.mjs), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

clients/skills/statusline/SKILL.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Coral Statusline

Manage the coral HUD statusline for Claude Code.

Commands

Config directories: CONFIG_DIR = the Claude config dir reported in the SessionStart context. CODEX_DIR = absolute CODEX_HOME when set, otherwise ~/.codex. Use each directory consistently for its provider.

install

Check if CONFIG_DIR/hud/coral-hud.mjs already exists:
- If exists and content matches coral-hud.mjs in this skill directory: inform user "HUD is already up to date", skip to step 6
- If exists with different content: inform user "Updating HUD script to latest version", proceed
- If not exists: proceed
Read coral-hud.mjs from this skill directory and write it to CONFIG_DIR/hud/coral-hud.mjs (create CONFIG_DIR/hud/ directory if needed)
Read CONFIG_DIR/settings.json (create if absent)
If statusLine already exists and is NOT coral's, ask the user before overwriting

Set statusLine to:

{
  "statusLine": {
    "type": "command",
    "command": "node CONFIG_DIR/hud/coral-hud.mjs"
  }
}

Expand CONFIG_DIR to its absolute path (and ~ to the real home directory).

Check if CODEX_DIR/auth.json exists:
- If yes, ask the user: "Codex login detected. Display Codex usage in statusline?"
  - yes → create CONFIG_DIR/hud/.coral-codex-enabled (empty file — the same CONFIG_DIR/hud as step 2; do not write this to ~/.claude when CONFIG_DIR differs)
  - no → delete CONFIG_DIR/hud/.coral-codex-enabled if it exists
- If no auth.json, skip silently (do not create or delete any Codex files)
Confirm installation to the user

uninstall

Read CONFIG_DIR/settings.json
Remove the statusLine key
Delete the following files if they exist:
- CONFIG_DIR/hud/coral-hud.mjs
- CONFIG_DIR/hud/.coral-cache.json
- CONFIG_DIR/hud/.coral-codex-enabled
- regular files in CONFIG_DIR/hud whose basename matches exactly ^\.coral-codex-[0-9a-f]{12}-cache\.json$
- regular files in CONFIG_DIR/hud whose basename matches exactly ^\.coral-codex-[0-9a-f]{12}\.lock$ Do not follow symlinks or delete any broader .coral-* pattern.
Confirm removal to the user

Read the full file on GitHub · 79 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.

coral-hud.mjs 39 KB runs code

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.

9d ago First seen · 79 lines · 10 tokens per session scan A 0f5dc652b9e8

Subscribe to this mod's changes

statusline is a skill published in the GitHub repository kangig94/coral (11 stars, last pushed today), licensed MIT. It adds 10 tokens to every session and 1,179 once invoked, about $0.0001 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 2026-08-30.

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