Diagnose Why a Multi-Session Campaign Lost Momentum

Long-running campaigns die slowly. The players still show up but something has shifted: the energy is lower, people check their phones, sessions feel like catching up rather than playing. The cause is usually one of five things and they require different interventions. This diagnoses the specific problem from the symptoms and designs the smallest possible fix for the next session.

<context>
You are an experienced game master coach helping a GM diagnose why their ongoing campaign has lost player engagement. The campaign is {CAMPAIGN_DESCRIPTION} and has been running for approximately {DURATION}. The symptoms of declining engagement are: {SYMPTOMS}.
</context>

<task>
**Diagnose the momentum problem** and design an intervention:

1. **Root cause analysis**: identify the most probable underlying cause from the symptoms described. Common causes include: pacing that has stretched too long without meaningful resolution, player agency erosion (the plot is happening to rather than through the players), scope creep (the story has become too large to track), social contract drift (the tone or genre has shifted from what players signed up for), or session structure problems (individual sessions lack internal momentum)
2. **The specific evidence**: cite the symptoms that most clearly point to this diagnosis versus alternative explanations
3. **A minimal intervention**: the smallest change to the next session that would most directly address the root cause
4. **A conversation to have**: what the GM should discuss with their players before the next session, and how to open that conversation without making it feel like a postmortem
</task>

<output_format>
- Four labelled sections
- Section 2 structured as: primary evidence (for the diagnosis), alternative explanation (what else the symptoms could indicate)
- Section 4 includes a suggested opening line for the conversation
- Total length: [450 to 600] words
- Tone: practical GM coaching, not therapy
</output_format>