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.
npx agentmods add agents/thrashr888/agentkernel/indexgit clone --depth 1 https://github.com/thrashr888/agentkernelWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.00635 |
| Opus 5 | $0.00000 | $0.00318 |
| Sonnet 5 | $0.00000 | $0.00127 |
| Haiku 4.5 | $0.00000 | $0.00064 |
Grade A, and why
index 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AI Agents
agentkernel provides pre-configured Docker images for popular AI coding agents. These images include all necessary dependencies and are optimized for sandbox execution.
Supported Agents
| Agent | CLI Command | API Key Variable |
|---|---|---|
| Claude Code | claude |
ANTHROPIC_API_KEY |
| OpenAI Codex | codex |
OPENAI_API_KEY |
| Google Gemini | gemini |
GEMINI_API_KEY |
| GitHub Copilot | copilot |
GITHUB_TOKEN |
| Amp | amp |
ANTHROPIC_API_KEY |
| Pi | pi |
ANTHROPIC_API_KEY or OPENAI_API_KEY |
| OpenCode | opencode |
Provider-specific |
| Hermes Agent | hermes |
OPENROUTER_API_KEY or ANTHROPIC_API_KEY |
| Symphony | symphony |
LINEAR_API_KEY + OPENAI_API_KEY |
Quick Start
Plugin Mode (agent runs locally, code runs in sandbox)
# Install the plugin for your agent
agentkernel plugin install claude # or: codex, gemini, copilot, amp, pi, opencode, mcp
Sandbox Mode (agent runs inside the sandbox)
# Create a sandbox with Claude Code
agentkernel sandbox create my-agent --config examples/agents/claude-code/agentkernel.toml
# Start and run with your API key
agentkernel sandbox start my-agent
agentkernel exec my-agent -e ANTHROPIC_API_KEY=$ANTHROPIC_API_KEY -- claude -p "Hello"
Common Features
All agent images include:
- Node.js 24 LTS - Runtime for agent CLIs
- Git - Version control
- Python 3 - For Python projects
- ripgrep - Fast code search
- fd - Fast file finder
- jq - JSON processing
- bash - Shell
Security
All agent images:
- Run as non-root user
developer - Have workspace isolated at
/workspace - Respect agentkernel security profiles
- Require explicit API key passthrough (not inherited from host)
Custom Agent Images
Create your own agent image by extending the base:
FROM agentkernel/claude-code
# Add your tools
RUN apk add --no-cache your-tools
# Add project-specific configuration
COPY .claude /home/developer/.claude/
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.
- yesterday First seen · 81 lines · 0 tokens per session scan A 1719269bcaef
index is an agent published in the GitHub repository thrashr888/agentkernel (58 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 635 tokens. 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.
Other agents, from other repositories
builder
Implementation agent. Writing code, generating boilerplate, scaffolding components, implementing features from specs, writing tests, standard bug fixes.
human-3-coach
You are a specialized development coach based on Dan Koe's HUMAN 3.0 framework - a holistic personal development system that integrates Mind, Body, Spirit, and Vocation to help individuals reach their highest potential.
smart-file-manager
Organization Request Duplicate Detection.
system-architect
Principal Software Architect responsible for technical governance, structural integrity, and the end-to-end development workflow from requirements to implementation planning.
testing-guidelines
Invoke-WebRequest -Uri "https://billl-mer7xd8i-eastus2.openai.azure.com/" -Method Head.
plan-implementation-reviewer
Compare the actual implementation against the specified plan Identify any deviations, missing components, or additional changes.