A session-start command that examines a codebase’s structure and documentation, then summarizes the important context.

Use it to inspect tracked files, directories, README files, changelogs, and selected paths with optional depth.

It helps an agent understand an unfamiliar project before making changes.

prime — Command for Claude Code by basher83/lunar-claude

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.

Clone the repo

git clone --depth 1 https://github.com/basher83/lunar-claude

Made for: Claude Code.

Or install meta-claude, the plugin that ships this one along with the rest of its 2 skills, 1 command.

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/commands/basher83/lunar-claude/prime/github.svg)](https://agentmods.dev/commands/basher83/lunar-claude/prime)

Your own site

<a href="https://agentmods.dev/commands/basher83/lunar-claude/prime"><img src="https://agentmods.dev/badge/commands/basher83/lunar-claude/prime/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/commands/basher83/lunar-claude/prime"><img src="https://agentmods.dev/badge/commands/basher83/lunar-claude/prime.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 330 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.

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	$0.00014	$0.00330
Opus 5.5	$0.00006	$0.00132
Sonnet 5.5	$0.00003	$0.00066
Haiku 4.5	$0.00001	$0.00033

Measured 2mo ago against content hash 2708bb70697b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

prime 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 2mo 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.

plugins/meta/meta-claude/commands/prime.md · 45 lines

What it actually says

Prime

Load essential context for a new agent session: $ARGUMENTS

Arguments

<path> - Focus on a specific directory or file pattern
--deep - Include detailed file contents from key areas
--minimal - Only show structure, skip README/CHANGELOG
(none) - Default full context load

Context

Codebase Structure

Git-tracked files: !git ls-files $ARGUMENTS 2>/dev/null | head -100 || git ls-files | head -100

Directory tree: !eza . --tree --level=3 --git-ignore 2>/dev/null || find . -type f -name "*.md" -o -name "*.py" -o -name "*.ts" -o -name "*.json" | head -50

Project Documentation

@README.md @CHANGELOG.md

Instructions

Analyze the codebase structure to understand file organization
Read README.md to understand project purpose and setup
Note key directories and their purposes
Provide a concise overview including:
- Project purpose
- Key directories/components
- Important patterns or conventions
- Next steps if applicable

If $ARGUMENTS contains a path, focus analysis on that area. If --minimal, skip documentation reading. If --deep, also examine key configuration files.

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.

2mo ago First seen · 45 lines · 14 tokens per session scan A 2708bb70697b

Subscribe to this mod's changes

prime is a command published in the GitHub repository basher83/lunar-claude (23 stars, last pushed today), licensed MIT. It adds 14 tokens to every session and 330 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-03.

Building agents

prime next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
primebasher83/lunar-claude	Command	23	today	MIT	A	14	Claude Code
checklistgithub/spec-kit	Command	149k	today	MIT	A	13	Claude Code
clarifygithub/spec-kit	Command	149k	today	MIT	A	27	Claude Code
specifygithub/spec-kit	Command	149k	today	MIT	A	13	Claude Code
analyzegithub/spec-kit	Command	149k	today	MIT	A	26	Claude Code
convergegithub/spec-kit	Command	149k	today	MIT	A	35	Claude Code
implementgithub/spec-kit	Command	149k	today	MIT	A	14	Claude Code