symbi-init

symbi-init is a skill for Claude Code, Codex from Ezee234/symbi-gemini-cli. It costs 48 tokens per session (447 once invoked), scanned A, a copy of symbi-init, Apache-2.0.

A setup tool for projects governed by Symbiont, an agent system with defined capabilities, configuration, and access policies.

In plain words
What is it for?
Use it when initializing a governed project, including agent definitions, Cedar policies, runtime settings, and configuration.
Why use it?
It creates the starting files and folders needed to add governance to a new or existing agent project.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions AGENTS.md.

Good fit Use it when initializing a governed project, including agent definitions, Cedar policies, runtime settings, and configuration.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ezee234/symbi-gemini-cli/symbi-init
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 Ezee234/symbi-gemini-cli --skill symbi-init
Clone the repo
git clone --depth 1 https://github.com/Ezee234/symbi-gemini-cli

Made for: Claude Code, Codex.

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 symbi-init

README.md
[![agentmods](https://agentmods.dev/badge/skills/ezee234/symbi-gemini-cli/symbi-init/github.svg)](https://agentmods.dev/skills/ezee234/symbi-gemini-cli/symbi-init)
Your own site
<a href="https://agentmods.dev/skills/ezee234/symbi-gemini-cli/symbi-init"><img src="https://agentmods.dev/badge/skills/ezee234/symbi-gemini-cli/symbi-init/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 symbi-init

Your own site · 80×15
<a href="https://agentmods.dev/skills/ezee234/symbi-gemini-cli/symbi-init"><img src="https://agentmods.dev/badge/skills/ezee234/symbi-gemini-cli/symbi-init.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 447 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 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 $0.00048 $0.00447
Opus 5 $0.00024 $0.00224
Sonnet 5 $0.00010 $0.00089
Haiku 4.5 $0.00005 $0.00045

Measured 9d ago against content hash 45510d69fbb2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

symbi-init 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 9d 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

100% identical to symbi-init — 0 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/symbi-init/SKILL.md · 78 lines

What it actually says

Initialize Symbiont Project

Set up a governed agent project in the current directory.

Steps

  1. Check if symbiont.toml already exists. If so, ask before overwriting.

  2. Create the directory structure:

    agents/          # Agent DSL definitions
    policies/        # Cedar policy files
    
  3. Create symbiont.toml with sensible defaults:

    [runtime]
    security_tier = "tier1"   # Docker isolation
    log_level = "info"
    
    [policy]
    engine = "cedar"
    enforcement = "strict"
    
    [schemapin]
    mode = "tofu"  # Trust-On-First-Use
    
  4. Create a starter agent at agents/assistant.dsl:

    metadata {
        version = "1.0.0"
        description = "Default governed assistant"
    }
    
    agent assistant(input: Query) -> Response {
        capabilities = ["read", "analyze"]
    
        policy default_access {
            allow: read(input) if true
            deny: write(any) if not approved
            audit: all_operations
        }
    
        with memory = "session" {
            result = process(input)
            return result
        }
    }
    
  5. Create a starter Cedar policy at policies/default.cedar:

    // Default: allow read operations, require approval for writes
    permit(
        principal,
        action == Action::"read",
        resource
    );
    
    forbid(
        principal,
        action == Action::"write",
        resource
    ) unless {
        principal.approved == true
    };
    
  6. Create AGENTS.md manifest for the project.

  7. Report what was created and suggest next steps.

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. 9d ago First seen · 78 lines · 48 tokens per session scan A 45510d69fbb2

Subscribe to this mod's changes

symbi-init is a skill published in the GitHub repository Ezee234/symbi-gemini-cli (1 stars, last pushed 2d ago), licensed Apache-2.0. It adds 48 tokens to every session and 447 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to symbi-init, differing in 0 lines, and is treated as a copy.