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prime

prime is a skill for Claude Code from mishahanin/heading-os-marketplace. It costs 78 tokens per session (3,481 once invoked), scanned A, a copy of prime, Apache-2.0.

A session-starting skill that loads a workspace's personal, business, strategy, data, people, pipeline and reference context. It also checks CRM and synchronization health and suggests useful skills for the day.

In plain words
What is it for?
Use it at the beginning of a working session in a business workspace. It helps review active work, contacts, deals, operational data and available tools.
Why use it?
It gives the agent the background needed to work consistently across sessions. It surfaces current priorities and possible data or synchronization problems before work begins.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; reads .claude/ paths; mentions CLAUDE.md.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the heading-core plugin — 3 skills, 2 commands shipped together

not rated 2repo changed 7d ago A scan 78 tokens copy · 94% Apache-2.0

Good fit Use it at the beginning of a working session in a business workspace. It helps review active work, contacts, deals, operational data and available tools.

Compare 6 skills from other repositories ↓
View source ↗ mishahanin/heading-os-marketplace mishahanin.github.io
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add mishahanin/heading-os-marketplace
Claude Code
/plugin install heading-core

Made for: Claude Code.

Or install heading-core, the plugin that ships this one along with the rest of its 3 skills, 2 commands.

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/mishahanin/heading-os-marketplace/prime/github.svg)](https://agentmods.dev/skills/mishahanin/heading-os-marketplace/prime)
Your own site
<a href="https://agentmods.dev/skills/mishahanin/heading-os-marketplace/prime"><img src="https://agentmods.dev/badge/skills/mishahanin/heading-os-marketplace/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.

agentmods 80×15 button for prime

Your own site · 80×15
<a href="https://agentmods.dev/skills/mishahanin/heading-os-marketplace/prime"><img src="https://agentmods.dev/badge/skills/mishahanin/heading-os-marketplace/prime.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 78 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,481 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 94% copy Near-identical to another mod 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 $0.00078 $0.03481
Opus 5 $0.00039 $0.01741
Sonnet 5 $0.00016 $0.00696
Haiku 4.5 $0.00008 $0.00348

Measured 7d ago against content hash f050e25eb746, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, 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 7d 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.

Origin

This is a copy

94% identical to prime — 16 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/heading-core/skills/prime/SKILL.md · 217 lines

How it starts

The opening of the file, as written. The whole thing — 217 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Prime

Initialize the session. Load full context. Surface priorities. Recommend today's agents.

Read

First, read .workspace-identity.json to determine workspace type.

CLAUDE.md is already auto-loaded by the Claude Code harness (visible in the system prompt's claudeMd block) - do NOT re-read it.

Load the following files in this order (paths depend on workspace type):

CEO workspace (flat paths):

  1. context/personal-info.md - who Misha is
  2. context/business-info.md - 31C organization and ODUN.ONE
  3. context/strategy.md - strategic priorities and arc
  4. context/current-data.md - current metrics, milestones, active workstreams
  5. context/people.md - read only the "Top 10 Active Contacts (summary)" section. Full file remains available - Read context/people.md when a specific named contact requires deeper context.
  6. context/pipeline.md - active deals and investor conversations
  7. reference/workspace-overview.md - read only the H1 + "## Index" section. Defer the per-section detail to lazy-read when a specific tool, script, or system needs deeper context.
  8. datastore/INDEX.md - read only the H1 + "## Top-Level Structure (summary)" section. Defer the per-document tables to lazy-read when a specific fact needs validating.

Exec workspace (shared content under corporate/, personal under personal/):

  1. personal/context/personal-info.md - who the exec is
  2. corporate/context/business-info.md - 31C organization and ODUN.ONE
  3. corporate/context/strategy.md - strategic priorities and arc
  4. corporate/context/current-data.md - current metrics, milestones, active workstreams
  5. corporate/context/people.md - read only the "Top 10 Active Contacts (summary)" section when present. Full file remains available for lazy-read.
  6. corporate/context/pipeline.md - active deals and investor conversations
  7. corporate/datastore/INDEX.md - read only the H1 + "## Top-Level Structure (summary)" section when present.

Read the full file on GitHub · 217 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. 7d ago Changed · +1 lines f050e25eb746
  2. 12d ago First seen · 216 lines · 78 tokens per session scan A 21b748ea105e

Subscribe to this mod's changes

prime is a skill published in the GitHub repository mishahanin/heading-os-marketplace (2 stars, last pushed 5d ago), licensed Apache-2.0. It adds 78 tokens to every session and 3,481 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to prime, differing in 16 lines, and is treated as a copy.

Claude CodeMemory and contextProject managementai-agentsclaude-code-pluginheading-osplugin-marketplace
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