One object. Multiple decks.

Control Decks gives humans a small, explicit interface for directing agent behavior. Each deck has its own job. Every compatible card can receive the same Working Object, add a result or annotation, and pass it to the next deck.

HACP — Human-Agent Control Protocol
Cards are the interface. Control is the protocol.

Think It Through Explore, decide, plan, and explain.	Work This Way Set visible session controls and act.	Reality Check Verify targets, sources, and assumptions.

THINK PROPOSE → REALITY CHECK ASSUMPTIONS

A proposal becomes the Working Object. Reality Check annotates its assumptions without replacing the proposal.

WORK ASK FIRST
→ THINK TO PLAN
→ REALITY CHECK TARGETS
→ WORK IMPLEMENT
→ THINK EXPLAIN

One object moves through planning, verification, guarded execution, and presentation. The user sees one useful final result, not five disconnected reports.

Binding + Working Object + Active Controls

• binding chooses what the cards apply to.
• control activates, qualifies, or clears visible state.
• operation transforms, annotates, or acts on the object.
• presentation changes representation without changing substance.

Cards resolve in written order. The full stream is prevalidated before its first effect. No hidden reordering, hidden duration card, or implicit permission grant is allowed.

Each deck is an autonomous Codex and Claude Code plugin. HACP conformance is behavioral; the optional HACP skill helps explain, create, and audit decks but is never required to use one.

• Want to think something through? Install Think It Through.
• Want to change how the agent works in this session? Install Work This Way.
• Want to verify a result before relying on it? Install Reality Check.
• Want to build a compatible deck? Read HACP Draft 0.3 or play HACP AUTHOR CARD and HACP AUTHOR DECK.

Created by thevzion.