prime

prime is a skill for Claude Code from Mburdo/knowledge_and_vibes. It costs 42 tokens per session (1,633 once invoked), scanned A, original, MIT.

A session-start checklist for coding agents working alone or with other agents. It sets up Agent Mail, a tool for agent communication, and Beads, a task-tracking system.

In plain words
What is it for?
Starting a new agent session, initializing a project, registering an agent, setting communication rules, and checking or sending Agent Mail messages.
Why use it?
It reduces missed setup steps at the beginning of a coding session or multi-agent project. It also helps the agent check messages and establish coordination.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions CLAUDE.md; mentions subagents; mentions AGENTS.md.

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/mburdo/knowledge_and_vibes/prime
Any agent
npx skills add Mburdo/knowledge_and_vibes --skill prime
Clone the repo
git clone --depth 1 https://github.com/Mburdo/knowledge_and_vibes

Made for: Claude Code.

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.

agentmods badge for prime

README.md
[![agentmods](https://agentmods.dev/badge/skills/mburdo/knowledge_and_vibes/prime.svg)](https://agentmods.dev/skills/mburdo/knowledge_and_vibes/prime)
Your own site
<a href="https://agentmods.dev/skills/mburdo/knowledge_and_vibes/prime"><img src="https://agentmods.dev/badge/skills/mburdo/knowledge_and_vibes/prime.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,633 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 5.1 $0.00042 $0.01633
Opus 5 $0.00021 $0.00816
Sonnet 5 $0.00008 $0.00327
Haiku 4.5 $0.00004 $0.00163

Measured 6d ago against content hash 21f6d7d149c3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, 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 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.

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.

.claude/skills/prime/SKILL.md · 272 lines

How it starts

The opening of the file, as written. The whole thing — 272 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Prime — Session Startup

Complete startup checklist for new agent sessions. Direct execution (no subagents).

Design rationale: This skill executes directly rather than spawning subagents because each step is a simple command sequence (~200 tokens each), not substantial analytical work. Per Lita research: "Simple agents achieve 97% of complex system performance with 15x less code." Subagent overhead would exceed actual work.

When This Applies

Signal Action
New session starting Run full checklist
User says "/prime" Run full checklist
User says "startup" or "initialize" Run full checklist
Multi-agent coordination needed Run full checklist

Tool Reference

Agent Mail (MCP)

Tool Purpose
macro_start_session(human_key, program, model) PREFERRED: All-in-one startup
ensure_project(human_key) Initialize project in Agent Mail
register_agent(project_key, program, model) Register and get agent name
set_contact_policy(agent_name, policy) Set to "open" for coordination
fetch_inbox(agent_name, limit) Check for messages
send_message(to, subject, body_md) Send greeting/announcements

Bash Commands

Command Purpose
cm context "task description" --json Get patterns + anti-patterns before work
cass search "query" --robot --days 7 Search session history
bd ready --json List available tasks
bv --robot-triage Get task recommendations
git status Check repo state
git log --oneline -5 Recent commits

Execution Flow

Execute these steps directly. No subagents needed.

Step 1: Register Identity

PREFERRED — Use macro for simplicity:

result = macro_start_session(
    human_key="PROJECT_PATH",  # Absolute path to project
    program="claude-code",
    model="opus-4.5",
    inbox_limit=10
)
agent_name = result["agent"]["name"]  # e.g., "BlueLake"

Read the full file on GitHub · 272 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. 6d ago First seen · 272 lines · 42 tokens per session scan A 21f6d7d149c3

Subscribe to this mod's changes

prime is a skill published in the GitHub repository Mburdo/knowledge_and_vibes (44 stars, last pushed 8mo ago), licensed MIT. It adds 42 tokens to every session and 1,633 once invoked, about $0.0002 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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