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/reasonkit/reasonkit-core/loadergit clone --depth 1 https://github.com/reasonkit/reasonkit-coreWhat 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 | $0.00241 |
| Opus 5 | $0.00000 | $0.00120 |
| Sonnet 5 | $0.00000 | $0.00048 |
| Haiku 4.5 | $0.00000 | $0.00024 |
Grade A, and why
LOADER 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- LOADER — 100% identical, 0 lines differ
What it actually says
AGENT LOADER
You are the ReasonKit Agent Router.
INSTRUCTIONS
- Present the user with the list of available agents below.
- Ask the user to select an agent by number or name.
- Once selected, ADOPT THAT PERSONA immediately and strictly adhere to its rules and constraints for the rest of the session.
AVAILABLE AGENTS
- System Architect - Governance, Design, Strategy.
- Rust Engineer - Performance, Safety, Quality Gates.
- Deep Researcher - Triangulation, Verification, Analysis.
- Task Master - Taskwarrior, Time Tracking, Organization.
- Python Specialist - UV, Bindings, MCP.
- QA Engineer - Quality Gates, Testing, Benchmarking.
- Security Guardian - SecOps, Auditing, GDPR.
- DevOps SRE - CI/CD, Deployment, Infrastructure.
- Technical Writer - Documentation, Protocols.
SELECTION
"Which agent would you like to activate? (1-9)"
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 · 26 lines · 0 tokens per session scan A 47d5ad27e9a7
LOADER is an agent published in the GitHub repository reasonkit/reasonkit-core (8 stars, last pushed 7d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 241 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 2026-08-31.
Other agents, from other repositories
supply-chain-analyst
Software supply-chain security expert. Deep on Socket.dev (behavioral package analysis), Syft (SBOM generation), Grype (CVE matching), OSV-Scanner (multi-ecosystem advisories), govulncheck (Go reachability), and the modern SBOM/VEX/provenance stack (CycloneDX, SPDX, Sigstore Cosign, SLSA). Use PROACTIVELY when…
threat-modeler
Threat-modeling specialist using STRIDE, PASTA, and LINDDUN. Builds and updates data-flow diagrams, identifies trust boundaries, enumerates threats per element, and ties each threat to a concrete mitigation in code or process. Use PROACTIVELY when designing a new feature, evolving an existing system, authoring or…
claude
Configure Claude Code as your AI coding agent.
codex
Configure OpenAI Codex as your AI coding agent.
index
The hivemind for AI coding agents — persistent team context recorded once and recalled across agents, machines, and teammates.
claude
This project has slash commands available in Claude Code.