Agent skill · AI & Agents

agent-action-handshake

Canonical reference for the contract between an FSM action and the agent it invokes. Loads when authoring or debugging any combination of: `type: llm` inline action, `type: agent` action with `outputTo`, `type: agent` action with `inputFrom`, agent prompts that need to coordinate with the action invoking them. Covers what the runtime auto-injects per invocation kind (platform tools, `complete` when `outputTo` is set), `outputTo` semantics, `inputFrom` resolution, the four invocation kinds.

Friday Platform98★ · 1 repos on radarProfile →
claude-codeNOASSERTION
Install
npx skills add friday-platform/friday-studio --skill agent-action-handshake --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 1
SKILL.md size: 6 KB
Bundled scripts: none
Path: packages/system/skills/agent-action-handshake/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 98
Language: TypeScript
Read our review of the source →

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

From the SKILL.md

# Agent ↔ FSM-action handshake This is the contract between an FSM action and the agent it invokes. Most "platform bug" misdiagnoses live in the gap between "how the FSM authors the action" and "what the agent prompt expects." Read this once, then ground every job/agent edit in it. ## The four invocation kinds | FSM action | Referenced agent | Runtime path | |---|---|---| | `type: llm` inline | no

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About this skill
What does the agent-action-handshake skill do?

Canonical reference for the contract between an FSM action and the agent it invokes. Loads when authoring or debugging any combination of: `type: llm` inline action, `type: agent` action with `outputTo`, `type: agent` action with `inputFrom`, agent prompts that need to coordinate with the action invoking them. Covers what the runtime auto-injects per invocation kind (platform tools, `complete` when `outputTo` is set), `outputTo` semantics, `inputFrom` resolution, the four invocation kinds.

How do I install it?

Run `npx skills add friday-platform/friday-studio --skill agent-action-handshake --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From friday-platform/friday-studio, a repository with 98 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

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