From 6d69443f5128367ec81be58f1ba9414638105e65 Mon Sep 17 00:00:00 2001
From: Matthew Jackson <matthew@pq.io>
Date: Fri, 6 Mar 2026 15:12:35 -0800
Subject: [PATCH] Pass placeholder format hints to AI for inputs and textareas

Captures placeholder from textareas in snapshot. When AI fallback is
used, includes placeholder as a format hint so the AI knows expected
format (dates, phone numbers, URLs, etc).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 lib/form_filler.mjs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/form_filler.mjs b/lib/form_filler.mjs
index 3a04d5a..c0abdfd 100644
--- a/lib/form_filler.mjs
+++ b/lib/form_filler.mjs
@@ -437,7 +437,7 @@ Answer:`;
         if (!isVisible(ta)) return;
         const tag = 'ta-' + (idx++);
         ta.setAttribute('data-claw-idx', tag);
-        result.textareas.push({ tag, label: _extractLabel(ta), value: ta.value || '', required: _checkRequired(ta) });
+        result.textareas.push({ tag, label: _extractLabel(ta), value: ta.value || '', placeholder: ta.placeholder || '', required: _checkRequired(ta) });
       });
 
       // Fieldsets
@@ -568,9 +568,10 @@ Answer:`;
         continue;
       }
 
+      const formatHint = field.placeholder ? `(format: ${field.placeholder})` : '';
       let answer = this.answerFor(lbl);
       if (!answer && field.required) {
-        answer = await this.aiAnswerFor(lbl);
+        answer = await this.aiAnswerFor(formatHint ? `${lbl} ${formatHint}` : lbl);
         if (answer) this.saveAnswer(lbl, answer);
       }
       if (answer && answer !== this.profile.cover_letter) {
@@ -588,9 +589,10 @@ Answer:`;
     // --- Textareas ---
     for (const field of snap.textareas) {
       if (field.value?.trim()) continue;
+      const taFormatHint = field.placeholder ? `(format: ${field.placeholder})` : '';
       let answer = this.answerFor(field.label);
       if (!answer && field.required) {
-        answer = await this.aiAnswerFor(field.label);
+        answer = await this.aiAnswerFor(taFormatHint ? `${field.label} ${taFormatHint}` : field.label);
         if (answer) this.saveAnswer(field.label, answer);
       }
       if (answer) {