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/sonichi/sutando/context-dropnpx skills add sonichi/sutando --skill context-dropgit clone --depth 1 https://github.com/sonichi/sutandoWhat 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 | $0.00684 |
| Opus 5 | $0.00000 | $0.00342 |
| Sonnet 5 | $0.00000 | $0.00137 |
| Haiku 4.5 | $0.00000 | $0.00068 |
Grade A, and why
context-drop 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 2d 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 — 41 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Context-Drop AX-Read
Tiny Swift CLI that reads the focused app's text selection via the macOS Accessibility API. Sutando.app's "drop context" action (hotkey configurable via state/hotkeys.json) shells out to this binary to capture what you have highlighted.
What it does
Runs once per invocation and emits a single JSON line on stdout:
{"app":"Discord","window_title":"@sutando — Discord","url":"","selected":"the highlighted text","path":"ax"}
path values:
"ax"—AXSelectedTextreturned non-empty (native NSTextView path)"clipboard"— AX returned empty, Cmd+C fallback wrote new clipboard content"none"— both paths returned empty (or AX was denied)
The Cmd+C fallback uses NSPasteboard.changeCount to distinguish "Cmd+C actually wrote something" from "clipboard already had content" — otherwise the previous clipboard contents would be silently reported as the new selection. The prior pasteboard string is restored after the probe so a failed-copy attempt doesn't corrupt the clipboard.
Build
bash skills/context-drop/build.sh
Produces skills/context-drop/ax-read. The headless core's src/startup.sh does not build app-only helpers; compile this binary explicitly as part of the optional menu-bar app setup (or let the app packaging workflow build it).
Why a separate binary instead of inlining in Sutando.app
LSUIElement=YES menu-bar agents (which Sutando.app is) have a TCC attribution chain that can misroute AX queries to the parent bundle even after a re-grant. A separately-signed CLI launched as a child gets its own clean trust binding, and the resulting AX queries succeed consistently. The binary is also reusable by any other tool that needs a one-shot selection read — voice agents, other hotkey handlers, automation scripts.
Permissions
The first time ax-read runs it'll trigger the macOS Accessibility prompt for Sutando.app (its parent, who macOS attributes the AX queries to). Approve the prompt; the binding persists until the next codesign identity change. See PR #902 for the full TCC story.
What ships with it
5 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.
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.
- 2d ago First seen · 41 lines · 0 tokens per session scan A 79dd9d5d57e8
context-drop is a skill published in the GitHub repository sonichi/sutando (389 stars, last pushed 2d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 684 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 2026-08-30.
Other skills, from other repositories
contacts
Manage contacts, communication channels, access control, and invite links.
gmail
Manage Gmail email — drafting, sending, organizing, filters, vacation replies, and inbox analysis.
app-builder
Build and edit small, personal visual tools and artifacts — dashboards, trackers, calculators, data visualizations, charts, simple landing pages, and slide decks the user wants for THEMSELVES. This is the right skill whenever the user asks to "visualize this," "make a chart," or "build an artifact" for their own use…
assistant-migration
Migrate from ChatGPT, Claude, OpenClaw, Hermes, Manus, and other AI assistants into Vellum by inspecting their data exports, conversation archives, files, prompts, custom instructions, memory, saved memories, tools, GPTs, workflows, integrations, and relationships, then mapping as much as safely possible into Vellum…
guardian-verify-setup
Set up channel verification for phone, Telegram, Slack, Discord, or email channels via outbound verification flow.
media-processing
Ingest and process media files (video, audio, image).