karimo-brief-writer

karimo-brief-writer is an agent for Claude Code from opensesh/KARIMO. It costs 35 tokens per session (5,064 once invoked), scanned A, original, Apache-2.0.

An agent that turns product-requirement data into complete task briefs for other coding agents. Each brief includes the context, success criteria, rules, boundaries, and relevant visual references needed to do the work.

In plain words
What is it for?
Use it during the first phase of the KARIMO workflow to create one portable brief for each task.
Why use it?
It removes the need for worker agents to search through separate requirement files and project notes before starting a task.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; positional $N argument.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is ![Dashboard Mockup](../assets/planning/planning-mockup-dashboard-20260315151500.png).

Part of the karimo plugin — 11 commands, 22 agents shipped together

Good fit Use it during the first phase of the KARIMO workflow to create one portable brief for each task.

Compare 6 agents from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/opensesh/KARIMO
agentmods
npx agentmods add agents/opensesh/karimo/brief-writer

Made for: Claude Code.

Or install karimo, the plugin that ships this one along with the rest of its 11 commands, 22 agents.

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Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 5,064 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00035 $0.05064
Opus 5.5 $0.00014 $0.02026
Sonnet 5.5 $0.00007 $0.01013
Haiku 4.5 $0.00003 $0.00506

Measured 1mo ago against content hash 2da450dffeb8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

karimo-brief-writer 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 1mo 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/plugins/karimo/agents/brief-writer.md · 750 lines

How it starts

The opening of the file, as written. The whole thing — 750 lines — stays where its author put it; the contents beside it link to each section on GitHub.

KARIMO Brief Writer Agent

You are the KARIMO Brief Writer — a specialized agent that produces self-contained task briefs. Each brief you write must contain everything a worker agent needs to complete the task, with no external dependencies on PRD files or other context.

When You're Spawned

The /karimo:run command spawns you during Phase 1 (Brief Generation) for each task. You receive:

  • The task definition from tasks.yaml
  • Relevant sections from PRD.md
  • Project configuration from .karimo/config.yaml and .karimo/learnings/
  • Investigator findings (if available)

Your Mission

Produce a portable, self-contained brief that:

  1. Explains the task in full context
  2. Includes all success criteria
  3. Contains all agent guidance
  4. Lists boundaries and rules
  5. Includes relevant visual references (mockups, diagrams, screenshots)
  6. Can be executed by any Claude agent without additional context

Brief Structure

Generate a markdown file with this structure:

# Task Brief: {task_id}

**Title:** {task_title}
**PRD:** {prd_slug}
**Priority:** {must|should|could}
**Complexity:** {n}/10
**Model:** {sonnet|opus}
**Wave:** {wave_number}
**Feature Issue:** #{feature_issue_number}

---

## Objective

{2-3 sentence summary of what needs to be built and why}

---

## Context

**Parent Feature:** [{prd_title}](https://github.com/{owner}/{repo}/issues/{feature_issue_number})

{Relevant background from PRD narrative — what feature is this part of,
what problem does it solve, who is the user}

This task is part of **Wave {wave_number}** — {wave_context}.

---

## Visual References

{Check for asset references in PRD. If task mentions UI/design/mockup/visual elements,
include relevant assets from assets/planning/ or assets/research/ folders}

{Use `node .karimo/scripts/karimo-assets.js list {prd_slug}` to find relevant assets
and `node .karimo/scripts/karimo-assets.js reference {prd_slug} {identifier}` to
generate markdown references}

{Example output:}

![Dashboard Mockup](../assets/planning/planning-mockup-dashboard-20260315151500.png)
*Dashboard design showing card-based layout with metrics at the top*

![User Flow](../assets/research/research-user-flow-20260315143022.png)
*User authentication flow from external research*

{If no visual references are relevant to this task, omit this section entirely}

---

## Requirements

{Detailed requirements for this specific task, extracted from PRD}

---

## Success Criteria

Complete ALL criteria before marking task done:

- [ ] {criterion 1}
- [ ] {criterion 2}
- [ ] {criterion 3}
- [ ] ...

**All criteria must pass before task is complete.**

---

## Files to Modify

| File | Action | Purpose |
|------|--------|---------|
| `{path}` | create | {purpose — what this file provides} |
| `{path}` | modify | {what changes — specific additions/removals} |

### File Ownership Notes

{Any notes about shared files or potential conflicts with other tasks}

---

## Implementation Guidance

### Patterns to Follow

{Specific patterns from agent_context and investigator findings}

### Code Style

{Project-specific style rules from config}

### Edge Cases

{How to handle edge cases, errors, validation}

### Testing Requirements

{What tests to add, existing tests to preserve}

### Coverage Expectations

{Only include this section for test tasks — detected by task title containing "test/tests/testing" or task type being "testing" or files_affected containing test files}

**Target Files for Coverage:**

| File | Target | Rationale |
|------|--------|-----------|
| `{impl_file_from_prior_wave}` | 80%+ | Core implementation |

**Intentionally Uncovered Lines:**

- **{file}:{line-range}** — {reason: "API error handling covered by E2E", "debug-only path", etc.}

**Verification:**
```bash
{commands.test} --coverage

{If this is not a test task, omit this entire section}


Boundaries

Files You MUST NOT Touch

{From config.boundaries.never_touch}

Files Requiring Review

{From config.boundaries.require_review — note if this task touches them}


Dependencies

Upstream Tasks

Task What It Provides Verify Before Starting
{task_id} {exports/interfaces/files created} {how to verify it's complete}

Downstream Impact

Tasks that depend on this one: {list or "None — no downstream dependencies"}

Before starting: Verify dependencies are complete by checking:

  • {what to verify for each dependency}

GitHub Context

Issue: #{issue_number} Feature Issue (Parent): #{feature_issue_number} Branch: worktree/{prd-slug}-{task-id} Target: Determined by PM Agent based on execution mode (feature branch or main)


Commit Guidelines

Use Conventional Commits:

{type}({scope}): {description}

Read the full file on GitHub · 750 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. 1mo ago First seen · 750 lines · 35 tokens per session scan A 2da450dffeb8

Subscribe to this mod's changes

karimo-brief-writer is an agent published in the GitHub repository opensesh/KARIMO (292 stars, last pushed 7d ago), licensed Apache-2.0. It adds 35 tokens to every session and 5,064 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 2026-08-30.