agentica-prompts

agentica-prompts is a skill for Claude Code from vibeeval/vibecosystem. It costs 21 tokens per session (1,746 once invoked), scanned B, a copy of agentica-prompts, MIT.

A guide to writing clear instructions for Agentica and REPL-based AI agents. It describes a step-by-step workflow for research, planning, coding, testing, review, and debugging.

In plain words
What is it for?
Use it to design agent prompts, pass research and plans between agents, and structure implementation work with TDD, which means writing failing tests before the code that makes them pass.
Why use it?
It helps reduce mistakes caused by vague or conflicting instructions. It also keeps information organized as work moves between agents.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Good fit Use it to design agent prompts, pass research and plans between agents, and structure implementation work with TDD, which means writing failing tests before the code that makes them pass.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vibeeval/vibecosystem/agentica-prompts
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.

Any agent
npx skills add vibeeval/vibecosystem --skill agentica-prompts
Clone the repo
git clone --depth 1 https://github.com/vibeeval/vibecosystem

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 agentica-prompts

README.md
[![agentmods](https://agentmods.dev/badge/skills/vibeeval/vibecosystem/agentica-prompts/github.svg)](https://agentmods.dev/skills/vibeeval/vibecosystem/agentica-prompts)
Your own site
<a href="https://agentmods.dev/skills/vibeeval/vibecosystem/agentica-prompts"><img src="https://agentmods.dev/badge/skills/vibeeval/vibecosystem/agentica-prompts/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 agentica-prompts

Your own site · 80×15
<a href="https://agentmods.dev/skills/vibeeval/vibecosystem/agentica-prompts"><img src="https://agentmods.dev/badge/skills/vibeeval/vibecosystem/agentica-prompts.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,746 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% 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 $0.00021 $0.01746
Opus 5 $0.00010 $0.00873
Sonnet 5 $0.00004 $0.00349
Haiku 4.5 $0.00002 $0.00175

Measured 6d ago against content hash 87708e4f3e13, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade B, and why

agentica-prompts scanned grade B with 1 finding 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

codemap=$(cat .claude/cache/agents/codemap.md)
Origin

This is a copy

100% identical to agentica-prompts — 510 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.

skills/agentica-prompts/SKILL.md · 256 lines

How it starts

The opening of the file, as written. The whole thing — 256 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agentica Prompt Engineering

Write prompts that Agentica agents reliably follow. Standard natural language prompts fail ~35% of the time due to LLM instruction ambiguity.

The Orchestration Pattern

Proven workflow for context-preserving agent orchestration:

1. RESEARCH (Nia)     → Output to .claude/cache/agents/research/
       ↓
2. PLAN (RP-CLI)      → Reads research, outputs .claude/cache/agents/plan/
       ↓
3. VALIDATE           → Checks plan against best practices
       ↓
4. IMPLEMENT (TDD)    → Failing tests first, then pass
       ↓
5. REVIEW (Jury)      → Compare impl vs plan vs research
       ↓
6. DEBUG (if needed)  → Research via Nia, don't assume

Key: Use Task (not TaskOutput) + directory handoff = clean context

Agent System Prompt Template

Inject this into each agent's system prompt for rich context understanding:

## AGENT IDENTITY

You are {AGENT_ROLE} in a multi-agent orchestration system.
Your output will be consumed by: {DOWNSTREAM_AGENT}
Your input comes from: {UPSTREAM_AGENT}

## SYSTEM ARCHITECTURE

You are part of the Agentica orchestration framework:
- Memory Service: remember(key, value), recall(query), store_fact(content)
- Task Graph: create_task(), complete_task(), get_ready_tasks()
- File I/O: read_file(), write_file(), edit_file(), bash()

Session ID: {SESSION_ID} (all your memory/tasks scoped here)

## DIRECTORY HANDOFF

Read your inputs from: {INPUT_DIR}
Write your outputs to: {OUTPUT_DIR}

Output format: Write a summary file and any artifacts.
- {OUTPUT_DIR}/summary.md - What you did, key findings
- {OUTPUT_DIR}/artifacts/ - Any generated files

## CODE CONTEXT

{CODE_MAP}  <- Inject RepoPrompt codemap here

## YOUR TASK

{TASK_DESCRIPTION}

## CRITICAL RULES

1. RETRIEVE means read existing content - NEVER generate hypothetical content
2. WRITE means create/update file - specify exact content
3. When stuck, output what you found and what's blocking you
4. Your summary.md is your handoff to the next agent - be precise

Read the full file on GitHub · 256 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 · 256 lines · 21 tokens per session scan B 87708e4f3e13

Subscribe to this mod's changes

agentica-prompts is a skill published in the GitHub repository vibeeval/vibecosystem (529 stars, last pushed 1mo ago), licensed MIT. It adds 21 tokens to every session and 1,746 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). It is 100% identical to agentica-prompts, differing in 510 lines, and is treated as a copy.

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