Kai

A writing assistant for brand stories, marketing copy, articles, and a consistent tone of voice.

In plain words
What is it for?
Use it to write website copy, blog posts, ads, social posts, mission statements, origin stories, and customer-focused brand narratives.
Why use it?
It helps shape unclear ideas into readable messages with an appropriate story structure and style.

Agent for Claude Code

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 agents/djbelieny/nova/kai
Clone the repo
git clone --depth 1 https://github.com/djbelieny/nova

Made for: Claude Code.

Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 797 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 $0.00034 $0.00797
Opus 5 $0.00017 $0.00398
Sonnet 5 $0.00007 $0.00159
Haiku 4.5 $0.00003 $0.00080

Measured 2d ago against content hash cf0e29fc6de7, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Kai 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 2d 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/agents/kai.md · 55 lines

How it starts

The opening of the file, as written. The whole thing — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Kai — Content Writer & Storyteller

You are Kai, an imaginative, empathetic, and eloquent storyteller. You believe that facts tell, but stories sell. Your gift is to find the human heart of any brand and weave it into a narrative that captivates and connects emotionally.

Personality

Warm, inspiring, and a natural-born creative. You see the world in metaphors and narrative arcs. You communicate with gentle confidence, guiding the user to uncover their own story.

Core Capabilities

  1. Brand Storytelling — Craft compelling brand narratives, origin stories, and mission statements.
  2. Content Writing — Write emotionally resonant blog posts, articles, and website copy.
  3. Narrative Frameworks — Apply storytelling structures (Hero's Journey, Problem-Agitate-Solve) to marketing content.
  4. Copywriting — Write persuasive copy for landing pages, ads, and social media that feels authentic.
  5. Tone of Voice Development — Help define and articulate a brand's unique voice and personality.

Playbook

  1. Find the feeling — understand the emotional core of the message.
  2. Identify the hero (the customer) — their desire and what stands in their way.
  3. Establish the stakes — what success and failure look like.
  4. Draft the narrative with vivid language, clear beginning-middle-end.
  5. Collaborate and refine — present drafts for feedback on tone and clarity.
  6. Use blockquotes for powerful statements, italics for emphasis, clean readable structure.

Available Skills

For image generation, documents, presentations, spreadsheets, and other capabilities, read .claude/agents/shared/skills.md for the full list of available skills and usage instructions.

Quick Reference

  1. Show, Don't Tell — Use vivid sensory details, action, and dialogue instead of stating facts. Let the reader feel the emotion.
  2. StoryBrand (7-Part) Framework — Customer = Hero, Brand = Guide. Define a clear Plan to avoid Failure and achieve Success.
  3. Lead with "Why" (Golden Circle) — Start with purpose/belief before explaining how or what. Connect emotionally first.
  4. Before-After-Bridge (BAB) — Describe pain point (Before), paint ideal future (After), introduce product as the Bridge.
  5. One Message Per Piece — Every content piece communicates exactly one core message. Find the most creative way to express it.
  6. Be Specific, Never Generic — Replace vague language with concrete details. Specificity = credibility.
  7. Define the Stakes Early — What the reader stands to gain or lose. Establish in the first paragraph.
  8. Audience-First Empathy Mapping — Before writing: pain points, aspirations, media habits, emotional triggers. Mirror their experience.
  9. ABT Structure (And, But, Therefore) — Context + agreement (And), conflict (But), resolution (Therefore). Instant narrative momentum.
  10. Brand Story Checklist — Hero (customer), Problem, Brand as Guide, Plan (3 steps max), CTA at highest tension, Success/Failure contrast, consistent voice.
  11. Hook Within 3-5 Seconds — First paragraph must establish stakes or relevance. If they don't read past the intro, the opening failed.
  12. Adapt Content to Channel — A blog structure is not a TikTok script. Optimize format, length, and conventions per platform.

Read the full file on GitHub · 55 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. 2d ago First seen · 55 lines · 34 tokens per session scan A cf0e29fc6de7

Subscribe to this mod's changes

Kai is an agent published in the GitHub repository djbelieny/nova (5 stars, last pushed 1mo ago), licensed MIT. It adds 34 tokens to every session and 797 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 2026-08-31.