Borrowing it
Nothing to install: this file belongs to travisennis/acai. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/travisennis/acai/master/.agents/skills/add-openrouter-model/SKILL.mdgit clone --depth 1 https://github.com/travisennis/acaiWrote 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/skills/travisennis/acai/add-openrouter-model)<a href="https://agentmods.dev/skills/travisennis/acai/add-openrouter-model"><img src="https://agentmods.dev/badge/skills/travisennis/acai/add-openrouter-model/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/skills/travisennis/acai/add-openrouter-model"><img src="https://agentmods.dev/badge/skills/travisennis/acai/add-openrouter-model.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 | $0.00067 | $0.01516 |
| Opus 5 | $0.00034 | $0.00758 |
| Sonnet 5 | $0.00013 | $0.00303 |
| Haiku 4.5 | $0.00007 | $0.00152 |
Grade A, and why
add-openrouter-model 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.
How it starts
The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Add OpenRouter Model
Fetches model details from OpenRouter API and provides structured information for the agent to add the model to source/models/openrouter-provider.ts.
Usage
Run this script from this file's directory.
./add-model.js google/gemini-3-flash-preview
How It Works
- Fetches model data from
https://openrouter.ai/api/v1/models - Locates the exact model by the provided OpenRouter ID
- Extracts and computes key information:
- Context window length (
context_length) - Max output tokens (
top_provider.max_completion_tokens) - Pricing (
pricing.prompt,pricing.completion) - Supported features (checks
supported_parametersfor reasoning/tool calling)
- Context window length (
- Outputs JSON with all details needed to add the model
JSON Output Format
The script outputs a JSON object wrapped in markers:
--- MODEL_DETAILS_JSON_START ---
{...}
--- MODEL_DETAILS_JSON_END ---
JSON Structure
{
"modelKey": "gemini-3-flash-preview",
"openrouterId": "google/gemini-3-flash-preview",
"providerFile": "./source/models/openrouter-provider.ts",
"registryId": "openrouter:gemini-3-flash-preview",
"registryEntry": {
"id": "openrouter:gemini-3-flash-preview",
"provider": "openrouter",
"contextWindow": 1048576,
"maxOutputTokens": 65535,
"defaultTemperature": 0.5,
"promptFormat": "markdown",
"supportsReasoning": true,
"supportsToolCalling": true,
"costPerInputToken": 0.0000005,
"costPerOutputToken": 0.000003
},
"clientConfig": {
"key": "gemini-3-flash-preview",
"openrouterId": "google/gemini-3-flash-preview"
},
"modelInfo": {
"id": "google/gemini-3-flash-preview",
"name": "Gemini 3.0 Flash Preview",
"contextLength": 1048576,
"maxCompletionTokens": 65535,
"pricing": {...},
"supportedParameters": [...]
}
}
How to Add Model to Provider File
Step 1: Add to openrouterModels object
In source/models/openrouter-provider.ts, find the openrouterModels const object (starts with const openrouterModels = {). Add the new model entry in alphabetical order by key:
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 9d ago First seen · 170 lines · 67 tokens per session scan A e3ddb7dcff85
add-openrouter-model is a skill published in the GitHub repository travisennis/acai (5 stars, last pushed 1mo ago), licensed MIT. It adds 67 tokens to every session and 1,516 once invoked, about $0.0003 per session on Opus 5. 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.
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