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 skills/amadeusitgroup/otter/sdk-pluginsnpx skills add AmadeusITGroup/otter --skill sdk-pluginsgit clone --depth 1 https://github.com/AmadeusITGroup/otterWrote 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/amadeusitgroup/otter/sdk-plugins)<a href="https://agentmods.dev/skills/amadeusitgroup/otter/sdk-plugins"><img src="https://agentmods.dev/badge/skills/amadeusitgroup/otter/sdk-plugins.svg" alt="Measured on agentmods" 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 | $0.00074 | $0.01337 |
| Opus 5 | $0.00037 | $0.00668 |
| Sonnet 5 | $0.00015 | $0.00267 |
| Haiku 4.5 | $0.00007 | $0.00134 |
Grade A, and why
sdk-plugins 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 4d 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 — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SDK Plugins
Configure built-in plugins and create custom ones for @ama-sdk clients.
Plugin Architecture
Plugins are registered on client instantiation and execute in order:
const client = new ApiFetchClient({
basePath: 'https://api.example.com',
requestPlugins: [/* transform request before sending */],
fetchPlugins: [/* wrap the fetch call itself */],
replyPlugins: [/* process the response */]
});
Execution order:
requestPluginstransform theRequestOptions(headers, query params, body)fetchPluginswrap the actual HTTP call (retry, timeout, abort)replyPluginsprocess the response (deserialization, error handling)
Important: When customizing
replyPlugins, always re-apply theExceptionReplyandReviverReplyplugins. These are included by default but will be lost if you override the array. Without them, the SDK cannot deserialize responses or throw typed exceptions properly.
Built-in Plugins
For the full up-to-date list of available plugins, browse the source directories:
- Request plugins (imported from
@ama-sdk/core): https://github.com/AmadeusITGroup/otter/tree/main/packages/@ama-sdk/core/src/plugins - Fetch plugins (imported from
@ama-sdk/client-fetch): https://github.com/AmadeusITGroup/otter/tree/main/packages/@ama-sdk/client-fetch/src/plugins
Common Configurations
Authentication with API Key
import { ApiKeyRequest } from '@ama-sdk/core';
import { ApiFetchClient } from '@ama-sdk/client-fetch';
const client = new ApiFetchClient({
basePath: 'https://api.example.com',
requestPlugins: [
new ApiKeyRequest('Bearer my-token', 'Authorization')
]
});
Dynamic token (async)
import { ApiKeyRequest } from '@ama-sdk/core';
const client = new ApiFetchClient({
basePath: 'https://api.example.com',
requestPlugins: [
new ApiKeyRequest(async () => {
const token = await refreshToken();
return `Bearer ${token}`;
}, 'Authorization')
]
});
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.
- 4d ago First seen · 183 lines · 74 tokens per session scan A 3d14f745d2ad
sdk-plugins is a skill published in the GitHub repository AmadeusITGroup/otter (57 stars, last pushed today), licensed BSD-3-Clause. It adds 74 tokens to every session and 1,337 once invoked, about $0.0004 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 2026-08-30.
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