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.
git clone --depth 1 https://github.com/sananthanarayan/skilldropWrote 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.
[](https://agentmods.dev/agents/sananthanarayan/skilldrop/model-router)<a href="https://agentmods.dev/agents/sananthanarayan/skilldrop/model-router"><img src="https://agentmods.dev/badge/agents/sananthanarayan/skilldrop/model-router/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.
<a href="https://agentmods.dev/agents/sananthanarayan/skilldrop/model-router"><img src="https://agentmods.dev/badge/agents/sananthanarayan/skilldrop/model-router.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.01631 |
| Opus 5.5 | $0.00000 | $0.00652 |
| Sonnet 5.5 | $0.00000 | $0.00326 |
| Haiku 4.5 | $0.00000 | $0.00163 |
Grade A, and why
model-router 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 19d 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.
The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
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.
- 19d ago Changed 2fac34057010
- 1mo ago First seen · 81 lines · 0 tokens per session scan A 025bf4e67bef
model-router is an agent published in the GitHub repository sananthanarayan/skilldrop (2 stars, last pushed today), with no licence file. It costs nothing until one of its globs matches a file; then it loads 1,631 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
reviewer
Optional. Use only when the operator explicitly asks for a diff review or a DEC-drafting sweep. The default close path is the AI calling cairntaskcomplete with a summary.
curator-map
Cairn curator map subagent — one shard in, ≤15 candidate DEC/INV JSONL out. Spawned in parallel rounds of 4 during Phase 9b-curate.
component-annotator
Cairn component-annotator subagent — writes one @cairn registry header into one component file. Spawned in parallel batches during Phase 9e-comp-annotate.
curator-reduce
Cairn curator reduce subagent — clusters all curator-map output, synthesizes the final 30-80 DEC/INV set, writes final.jsonl. Spawned once after every map subagent finishes.
component-registrar
Cairn component-registrar — classifies one component and registers it in the out-of-repo headerless registry (ghost) via cairncomponentregister. No source edit.
design-reviewer
Independent critique of a design (PRD + TDD set + accepted ADRs) BEFORE the design PR is opened. Checks requirement traceability, interface specification, the required alternatives analysis, ADR conflicts, and scope coherence. Use at /tdd-author close-out.