How do you activate your AI Mode?

A SessionStart hook activates the mode and injects its rules when the session begins, so you do not paste instructions each time.

Do I need to paste instructions at the start of every session?

No. The hook activates the mode and injects its rules automatically at session start.

What kinds of postures can a session begin in?

Examples include strict review, an intensity level, or a house ruleset.

Mode Activation on Start

hookDev tools

Mode Activation on Start is a SessionStart hook that begins a coding session in a chosen posture, such as strict review, an intensity level, or a house ruleset. It activates the mode and injects its rules, so you do not paste instructions every time.

Unavailable. Delivery for this kind is on the roadmap — not serving yet.

Add to setup to save this item as a reference. Ahel cannot run it, and signing in will not install it.

What your AI can do with it

Activates a chosen mode when a session starts
Injects the mode's rules into the session
Supports postures like strict review or intensity level
Applies a house ruleset without pasting instructions

Getting started

Save this item in Your setup as a reference.
Read the source or reference documentation for its setup requirements. Saving it here does not connect it to your AI.
Check this page for availability before trying to install it through Ahel.

Signals

GitHub stars: 149k
Forks: 8k
Last commit: Sep 2026

Questions

How do you activate your AI Mode?: A SessionStart hook activates the mode and injects its rules when the session begins, so you do not paste instructions each time.
Do I need to paste instructions at the start of every session?: No. The hook activates the mode and injects its rules automatically at session start.
What kinds of postures can a session begin in?: Examples include strict review, an intensity level, or a house ruleset.

Advanced

Item type: hook
Key: mode-activation-on-start
Source: github.com/dietrichgebert/ponytail

github.com/dietrichgebert/ponytail