diff --git a/PROMPTS.md b/PROMPTS.md
index 9c7c5ab0..c985517b 100644
--- a/PROMPTS.md
+++ b/PROMPTS.md
@@ -92579,3 +92579,52 @@ A markdown report with:
 
 </details>
 
+<details>
+<summary><strong>Update/Sync Prompt</strong></summary>
+
+## Update/Sync Prompt
+
+Contributed by [@gokbeyinac](https://github.com/gokbeyinac)
+
+```md
+You are updating an existing FORME.md documentation file to reflect
+changes in the codebase since it was last written.
+
+## Inputs
+- **Current FORGME.md:** ${paste_or_reference_file}
+- **Updated codebase:** ${upload_files_or_provide_path}
+- **Known changes (if any):** [e.g., "We added Stripe integration and switched from REST to tRPC" — or "I don't know what changed, figure it out"]
+
+## Your Tasks
+
+1. **Diff Analysis:** Compare the documentation against the current code.
+   Identify what's new, what changed, and what's been removed.
+
+2. **Impact Assessment:** For each change, determine:
+   - Which FORME.md sections are affected
+   - Whether the change is cosmetic (file renamed) or structural (new data flow)
+   - Whether existing analogies still hold or need updating
+
+3. **Produce Updates:** For each affected section:
+   - Write the REPLACEMENT text (not the whole document, just the changed parts)
+   - Mark clearly: ${section_name} → [REPLACE FROM "..." TO "..."]
+   - Maintain the same tone, analogy system, and style as the original
+
+4. **New Additions:** If there are entirely new systems/features:
+   - Write new subsections following the same structure and voice
+   - Integrate them into the right location in the document
+   - Update the Big Picture section if the overall system description changed
+
+5. **Changelog Entry:** Add a dated entry at the top of the document:
+   "### Updated ${date} — [one-line summary of what changed]"
+
+## Rules
+- Do NOT rewrite sections that haven't changed
+- Do NOT break existing analogies unless the underlying system changed
+- If a technology was replaced, update the "crew" analogy (or equivalent)
+- Keep the same voice — if the original is casual, stay casual
+- Flag anything you're uncertain about: "I noticed [X] but couldn't determine if [Y]"
+```
+
+</details>
+
diff --git a/prompts.csv b/prompts.csv
index 1c2ca196..a287c536 100644
--- a/prompts.csv
+++ b/prompts.csv
@@ -75364,3 +75364,40 @@ A markdown report with:
 - **Summary stats:** X new tokens, Y deprecated, Z modified components
 - **Action items** prioritized by severity (breaking → inconsistent → cosmetic)
 - **Updated CLAUDE.md sections** ready to copy-paste (only the changed parts)",FALSE,TEXT,gokbeyinac
+Update/Sync Prompt,"You are updating an existing FORME.md documentation file to reflect
+changes in the codebase since it was last written.
+
+## Inputs
+- **Current FORGME.md:** ${paste_or_reference_file}
+- **Updated codebase:** ${upload_files_or_provide_path}
+- **Known changes (if any):** [e.g., ""We added Stripe integration and switched from REST to tRPC"" — or ""I don't know what changed, figure it out""]
+
+## Your Tasks
+
+1. **Diff Analysis:** Compare the documentation against the current code.
+   Identify what's new, what changed, and what's been removed.
+
+2. **Impact Assessment:** For each change, determine:
+   - Which FORME.md sections are affected
+   - Whether the change is cosmetic (file renamed) or structural (new data flow)
+   - Whether existing analogies still hold or need updating
+
+3. **Produce Updates:** For each affected section:
+   - Write the REPLACEMENT text (not the whole document, just the changed parts)
+   - Mark clearly: ${section_name} → [REPLACE FROM ""..."" TO ""...""]
+   - Maintain the same tone, analogy system, and style as the original
+
+4. **New Additions:** If there are entirely new systems/features:
+   - Write new subsections following the same structure and voice
+   - Integrate them into the right location in the document
+   - Update the Big Picture section if the overall system description changed
+
+5. **Changelog Entry:** Add a dated entry at the top of the document:
+   ""### Updated ${date} — [one-line summary of what changed]""
+
+## Rules
+- Do NOT rewrite sections that haven't changed
+- Do NOT break existing analogies unless the underlying system changed
+- If a technology was replaced, update the ""crew"" analogy (or equivalent)
+- Keep the same voice — if the original is casual, stay casual
+- Flag anything you're uncertain about: ""I noticed [X] but couldn't determine if [Y]""",FALSE,TEXT,gokbeyinac