cephxs / CISD [base]

A CISD (Change In State of Delivery) marks the moment one side loses
control: price closes back through the run of candles that made the last
push. This script finds those moments, draws the level, and removes the
level when it fails.

1. A swing point forms. The script walks back through the run of
   same-direction candle bodies that came before it. The open of the first
   candle in that run is the CISD level.
2. The script draws the level as a dotted line — a pending CISD. If the
   opposing move continues, the script moves the pending level with it and
   updates the true extreme of the run.
3. When a candle closes through the level, the script confirms the CISD.
   The line becomes solid, and the script places a marker on that bar.
4. If a pending CISD gets no confirmation close within its timeout, the
   script removes it. If price later crosses the swing point that created a
   confirmed CISD, the script removes that CISD. A broken level does not stay
   on your chart.

• Body — projects from the candle bodies of the stretch.
• Wick — projects from the true peak or trough of the whole
  opposing move, wicks included.

1. Load the script on your execution timeframe with the default settings.
   It works on all symbols and timeframes.
2. A dotted line is a pending CISD. Do not act on it. A solid line is a
   confirmed change in delivery. The level often acts as support or
   resistance on a retest.
3. A thin solid line is a propulsion block. Read it as continuation from
   an earlier level, not as a fresh reversal.
4. If a confirmed level disappears, price broke the swing point that
   created it. Treat this removal as the invalidation.
5. Use the Fibonacci extensions as draw-on-liquidity targets for the move
   that follows confirmation.

• CISD Directional Bias — default Auto. When you trade one side
  of a higher-timeframe bias, set it to Bullish or Bearish.
• CISD Size Filter — default on, Regular. This setting removes
  stretches that are small in relation to current volatility. The smallest
  preset (Really small) keeps more CISDs. The largest preset (Juicy) keeps
  only significant moves.
• CISD Sensitivity — default Standard. This setting controls how
  many bars a pending CISD waits for its confirmation close (Standard 10,
  Max 20).
• Show only Macro CISD? — default off. When this setting is on,
  confirmation must occur in the macro windows (minutes 00-10, 24-36, 50-59
  of each hour).
• Filter by Purge — default off. When this setting is on, a CISD
  forms only after a sweep of a nearby swing, within your bar tolerance.
• Show All Historical CISD? — default off. When this setting is
  on, invalidated CISDs stay on the chart as dashed lines. The maximum-count
  limit no longer applies.
• Calculate From — default Body. Set it to Wick to anchor
  Fibonacci projections at the true extreme of the opposing move.

• Confirmation is close-based. A confirmed CISD does not repaint. But
  you get it one closed candle after the turn, never at the turn.
• Pending (dotted) levels are provisional by design. They move while the
  opposing run extends, and they disappear on timeout. Do not trade a dotted
  line as a confirmed level.
• The macro time filter uses fixed New York-aligned windows. On
  timeframes of more than 1 hour, the filter has little meaning.
• The script has no alerts. It is a charting tool.
• The script computes levels only over the most recent bars of chart
  history, not the full loaded history.

This is a tool for your own analysis, not trading advice. Test it
on your own instruments and timeframes before you even think about risking money on it.