AG Pro Kill Zone Session Engine [AGPro Series]AG Pro Kill Zone Session Engine
Overview / What it does
AG Pro Kill Zone Session Engine is a session-based overlay designed to map the internal range behavior of selected intraday kill zones and preserve the most relevant reference levels after each zone has ended.
Instead of treating London, New York, Asia, and London Close as simple background highlights, this script organizes each enabled zone as a structured session event. During an active zone, it tracks the developing high, low, and optional midpoint. After the zone closes, it can carry those levels forward as clean horizontal references so traders can study how price interacts with prior session liquidity.
The script is built for users who want more context than a basic session coloring tool. It helps visualize where a session range formed, how wide it was relative to recent history, whether the session expanded or stayed narrow, and whether later price action interacted with that session through sweep-style behavior.
This is not a prediction engine and it does not attempt to forecast the next directional move. Its purpose is to structure session information into a cleaner analytical framework so traders can evaluate intraday context with more consistency.
Unique Edge
What makes this script different from a standard session indicator is that it does not stop at showing when a session is active.
Its core focus is session range formation plus post-session interaction. Each enabled kill zone can build a live range while active, then leave behind reference levels that remain usable after the session ends. This allows the chart to show not only where a session occurred, but also how later price responded to that session.
The script also adds session-width context. A zone can be classified relative to recent comparable zones so traders can quickly see whether the session was narrow, balanced, or expanded. That extra layer helps separate passive session activity from zones that created a more meaningful range.
Another important distinction is the sweep engine. Rather than only drawing static levels, the script can evaluate whether later price action interacts with prior session highs or lows in a sweep-oriented manner. This makes the tool more useful for traders who study liquidity behavior around specific intraday windows.
In short, this script is intended to function as a session behavior map, not as a simple background painter.
Methodology
The script works in four main steps.
1) Session detection
The user can enable or disable the supported kill zones individually and define session windows using a UTC offset and custom time settings. This keeps the script flexible across instruments, broker feeds, and local chart preferences.
2) Range construction
While a kill zone is active, the script updates the developing session high and low. Optional midpoint logic can also be shown. These values form the core session range for that specific zone.
3) Post-session reference mapping
When the zone ends, the completed high and low can remain on the chart as forward reference levels. This allows later price interaction to be evaluated against a completed session range rather than only during the active zone itself.
4) Sweep and width analysis
The script can evaluate reference-level interactions using its sweep logic and can also classify the completed width of a zone relative to prior zones of the same type. This helps the user distinguish between narrow, balanced, and expanded sessions.
Signals & Alerts
This script is primarily an analytical overlay, but it also supports alertable events around session activity and sweep behavior.
Depending on the enabled options, the script can be used to monitor:
- when a new kill zone becomes active,
- when price interacts with a prior session high,
- when price interacts with a prior session low,
- when sweep-oriented behavior is detected relative to a carried-forward reference range.
These events are designed to describe chart conditions, not to deliver standalone trade calls.
The visual outputs can include:
- session background shading,
- current and completed session high/low levels,
- optional midpoint levels,
- compact session summary labels,
- sweep markers,
- an information panel showing active zone status, width context, reference zone, and sweep status.
Key Inputs
The script includes a focused but flexible input set so users can adapt it without overcomplicating the chart.
Core controls include:
- UTC offset and custom session timing,
- individual enable/disable controls for Asia, London, New York, and London Close,
- high/low visibility,
- midpoint visibility,
- projection length for completed session levels,
- label density and summary behavior,
- panel visibility, placement, and text sizing,
- sweep mode and alert controls,
- visible session memory so the chart can stay cleaner on higher timeframes.
These controls allow the tool to be used in a more detailed mode on lower intraday charts or in a more compressed mode on higher timeframes.
Limitations & Transparency
This script is designed as a context tool. It does not define trade entries, stop placement, or risk management for the user.
Session behavior can vary across instruments and feeds, so identical settings may not produce equally meaningful output on every market. Some assets respond more clearly to session-based reference levels than others.
Sweep logic is also a chart-interpretation aid, not a certainty model. A detected sweep does not imply immediate reversal, continuation, or trade validity on its own. It simply highlights a specific type of interaction with a prior session reference.
The script is best suited to intraday analysis. While it can still display useful information on higher timeframes, the underlying logic is rooted in session behavior, so lower intraday charts will usually provide more direct visual relevance.
As with any visual overlay, increasing history depth or label density may add chart clutter. For that reason, the script includes controls to compress memory and reduce label load when needed.
Risk Disclosure
This script is provided for educational and analytical use only.
It is not financial advice, not a signal service, and not a promise of outcome. It does not guarantee reversals, breakouts, continuations, or profitable execution. Any trading decision should be made within the user's own process, risk model, and market understanding.
The intended use of this script is to help organize session structure, liquidity references, and post-session interaction on the chart so that traders can make more informed observations with a clearer visual framework.
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