A command-line tool for managing Sinch services from a terminal. It covers serverless Functions, phone numbers, voice calls, messaging, fax, SIP connections, secrets, and project profiles.

Use it to log in, develop and deploy Functions, inspect logs and status, manage numbers and porting, send messages, place calls, and configure Sinch services.

It puts common setup, deployment, messaging, calling, and account-management tasks in one terminal interface.

sinch-cli — Skill for Claude Code and Codex by sinch/sinch-plugins

Install

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.

Any agent

npx skills add sinch/sinch-plugins --skill cli

Clone the repo

git clone --depth 1 https://github.com/sinch/sinch-plugins

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/sinch/sinch-plugins/cli/github.svg)](https://agentmods.dev/skills/sinch/sinch-plugins/cli)

Your own site

<a href="https://agentmods.dev/skills/sinch/sinch-plugins/cli"><img src="https://agentmods.dev/badge/skills/sinch/sinch-plugins/cli/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/sinch/sinch-plugins/cli"><img src="https://agentmods.dev/badge/skills/sinch/sinch-plugins/cli.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 4,637 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00095	$0.04637
Opus 5.5	$0.00038	$0.01855
Sonnet 5.5	$0.00019	$0.00927
Haiku 4.5	$0.00010	$0.00464

Measured 10d ago against content hash b144ea7e8225, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sinch-cli 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 10d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

sinch-cli — 100% identical, 0 lines differ

plugins/sinch-antigravity-plugin/skills/cli/SKILL.md · 345 lines

How it starts

The opening of the file, as written. The whole thing — 345 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sinch CLI

Overview

Sinch Functions and the CLI are in beta: free during the beta period, and commands may change before general availability.

The Sinch CLI (@sinch/cli, binary: sinch) is a unified command-line tool for the entire Sinch platform. It manages Sinch Functions (serverless), Voice applications and outbound calls, phone Numbers, Conversation messaging (SMS/WhatsApp/RCS and other channels), Fax, Elastic SIP Trunking, secrets stored in the OS keychain, and multi-project configuration profiles.

Related skills:

sinch-functions — platform overview, runtime choice, deployment concepts
sinch-functions-node — Node.js runtime code (function.ts, onCall, the injected CommandBuilder, etc.)
sinch-functions-dotnet — C# runtime code (SinchVoiceController, CommandBuilder, etc.)
Voice API v2 is covered by the sinch-voice-api-v2 skill; load it for the REST contract, SVAML v2 commands, and service configuration.

Agent Instructions

Policy gate sinch-shared-policy@5 (sha256:4864cf0fa8d6): The policy digest below is binding as written. Before implementation or live execution, read the full shared Sinch policy once per conversation — skip it if this exact ID/version/fingerprint is already loaded; read it if the version is newer or the fingerprint differs. This skill's canonical operation routes live in its Agent Instructions and Links sections.

Sinch policy digest (binding):

Load the shared policy once per conversation; skip duplicate copies bearing the same ID/version/fingerprint.
Infer product, language, region, and environment from the request and workspace; ask one combined question only for true blockers. Prefer the official Sinch SDK unless the request or workspace decides otherwise or no official SDK covers the language or operation.
Code-generation approval is not execution approval. Classify every operation (read-only / reversible / billable / destructive) and obtain explicit approval before billable or destructive calls.
Tier B facts — endpoint paths, methods, field names, enums, limits, webhook payloads, signature algorithms, SDK signatures — require fetching the exact canonical document in the current session before use.
Bundled scripts, references, and examples are Tier C: illustrations, never schema authority. Never promote example values to production defaults.
If a route is unresolved or a canonical fetch fails, climb the resolution ladder in order — re-search already-fetched documents (raw, not summarized), consult https://developers.sinch.com/llms.txt, follow first-party links, retry once — before failing closed. Never pattern-guess a documentation URL; never substitute memory, search snippets, or bundled files.
Keep an evidence ledger mapping each fetched source to the fields and claims it authorized.
Bound all polling and retries (backoff, jitter, hard cap); check state before retrying billable or destructive operations; report a timeout as unknown, not failed.
Report verification levels separately (lint → unit → mock contract → sandbox → live → end-to-end); an HTTP 2xx does not prove delivery. State the levels not performed.
Load only the smallest skill set that owns the behavior; if a required skill is unavailable, name it and stop rather than improvising its instructions.

Read the full file on GitHub · 345 lines

Files

What ships with it

4 files 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.

Changes

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.

10d ago First seen · 345 lines · 95 tokens per session scan A b144ea7e8225

Subscribe to this mod's changes

sinch-cli is a skill published in the GitHub repository sinch/sinch-plugins (6 stars, last pushed 11d ago), licensed Apache-2.0. It adds 95 tokens to every session and 4,637 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-10-06.

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