Add example-correction formatting rule to all agent prompts

Agents now show example corrections in the format they're recommending
(e.g. sentence case examples when recommending sentence case) to avoid
contradictions between advice and examples.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/app/agents/brand_agent.py

@@ -153,6 +153,7 @@ If the proof is nonsensical, not a marketing material, or cannot be analyzed, se
   (a) Always capitalise the first word after a full stop, including labels like "Recommendation:" and "Issue:".
   (b) End every bullet point with a full stop if it is a complete sentence. If bullets are short fragments, omit the full stop — but be consistent within the same output.
   (c) Write "e.g." with no comma after it (e.g. "Apply rotation" not "e.g., Apply rotation").
+- IMPORTANT: When providing example corrections in recommendations, always show the example in the format you are recommending. If recommending sentence case, write the example in sentence case (e.g. "Apply now" not "Apply Now"). If quoting the user's original error, show it first, then the corrected version: "Change 'Apply Now' to 'Apply now' (sentence case)."
 - IMPORTANT: Always spell out acronyms in full on first use, with the abbreviation in parentheses. Use the short form only for subsequent mentions within the same output. Common acronyms to expand include: WCAG (Web Content Accessibility Guidelines), FSCS (Financial Services Compensation Scheme), GDE (Global Digital Expression), APR (Annual Percentage Rate), CTA (Call-to-Action), FCA (Financial Conduct Authority), PRA (Prudential Regulation Authority), T&Cs (Terms and Conditions). Apply this rule to any acronym, not only those listed here.
 """
 

backend/app/agents/channel_best_practices_agent.py

@@ -146,6 +146,7 @@ If the proof is nonsensical, not a marketing material, or cannot be analyzed, se
   (a) Always capitalise the first word after a full stop, including labels like "Recommendation:" and "Issue:".
   (b) End every bullet point with a full stop if it is a complete sentence. If bullets are short fragments, omit the full stop — but be consistent within the same output.
   (c) Write "e.g." with no comma after it (e.g. "Apply rotation" not "e.g., Apply rotation").
+- IMPORTANT: When providing example corrections in recommendations, always show the example in the format you are recommending. If recommending sentence case, write the example in sentence case (e.g. "Apply now" not "Apply Now"). If quoting the user's original error, show it first, then the corrected version: "Change 'Apply Now' to 'Apply now' (sentence case)."
 - IMPORTANT: Always spell out acronyms in full on first use, with the abbreviation in parentheses. Use the short form only for subsequent mentions within the same output. Common acronyms to expand include: WCAG (Web Content Accessibility Guidelines), FSCS (Financial Services Compensation Scheme), GDE (Global Digital Expression), APR (Annual Percentage Rate), CTA (Call-to-Action), FCA (Financial Conduct Authority), PRA (Prudential Regulation Authority), T&Cs (Terms and Conditions). Apply this rule to any acronym, not only those listed here.
 """
 

backend/app/agents/channel_tech_specs_agent.py

@@ -154,6 +154,7 @@ If the proof is nonsensical, not a marketing material, or cannot be analyzed, se
   (a) Always capitalise the first word after a full stop, including labels like "Recommendation:" and "Issue:".
   (b) End every bullet point with a full stop if it is a complete sentence. If bullets are short fragments, omit the full stop — but be consistent within the same output.
   (c) Write "e.g." with no comma after it (e.g. "Apply rotation" not "e.g., Apply rotation").
+- IMPORTANT: When providing example corrections in recommendations, always show the example in the format you are recommending. If recommending sentence case, write the example in sentence case (e.g. "Apply now" not "Apply Now"). If quoting the user's original error, show it first, then the corrected version: "Change 'Apply Now' to 'Apply now' (sentence case)."
 - IMPORTANT: Always spell out acronyms in full on first use, with the abbreviation in parentheses. Use the short form only for subsequent mentions within the same output. Common acronyms to expand include: WCAG (Web Content Accessibility Guidelines), FSCS (Financial Services Compensation Scheme), GDE (Global Digital Expression), APR (Annual Percentage Rate), CTA (Call-to-Action), FCA (Financial Conduct Authority), PRA (Prudential Regulation Authority), T&Cs (Terms and Conditions). Apply this rule to any acronym, not only those listed here.
 """
 

backend/app/agents/lead_agent.py

@@ -160,6 +160,7 @@ Your summary should:
   (a) Always capitalise the first word after a full stop, including labels like "Recommendation:" and "Issue:".
   (b) End every bullet point with a full stop if it is a complete sentence. If bullets are short fragments, omit the full stop — but be consistent within the same output.
   (c) Write "e.g." with no comma after it (e.g. "Apply rotation" not "e.g., Apply rotation").
+- IMPORTANT: When providing example corrections in recommendations, always show the example in the format you are recommending. If recommending sentence case, write the example in sentence case (e.g. "Apply now" not "Apply Now"). If quoting the user's original error, show it first, then the corrected version: "Change 'Apply Now' to 'Apply now' (sentence case)."
 - IMPORTANT: Always spell out acronyms in full on first use, with the abbreviation in parentheses. Use the short form only for subsequent mentions within the same output. Common acronyms to expand include: WCAG (Web Content Accessibility Guidelines), FSCS (Financial Services Compensation Scheme), GDE (Global Digital Expression), APR (Annual Percentage Rate), CTA (Call-to-Action), FCA (Financial Conduct Authority), PRA (Prudential Regulation Authority), T&Cs (Terms and Conditions). Apply this rule to any acronym, not only those listed here.
 {revision_context}
 Here are the specialist reviews:

backend/app/agents/legal_agent.py

@@ -156,6 +156,7 @@ If the proof is nonsensical, not a marketing material, or cannot be analyzed, se
   (a) Always capitalise the first word after a full stop, including labels like "Recommendation:" and "Issue:".
   (b) End every bullet point with a full stop if it is a complete sentence. If bullets are short fragments, omit the full stop — but be consistent within the same output.
   (c) Write "e.g." with no comma after it (e.g. "Apply rotation" not "e.g., Apply rotation").
+- IMPORTANT: When providing example corrections in recommendations, always show the example in the format you are recommending. If recommending sentence case, write the example in sentence case (e.g. "Apply now" not "Apply Now"). If quoting the user's original error, show it first, then the corrected version: "Change 'Apply Now' to 'Apply now' (sentence case)."
 - IMPORTANT: Always spell out acronyms in full on first use, with the abbreviation in parentheses. Use the short form only for subsequent mentions within the same output. Common acronyms to expand include: WCAG (Web Content Accessibility Guidelines), FSCS (Financial Services Compensation Scheme), GDE (Global Digital Expression), APR (Annual Percentage Rate), CTA (Call-to-Action), FCA (Financial Conduct Authority), PRA (Prudential Regulation Authority), T&Cs (Terms and Conditions). Apply this rule to any acronym, not only those listed here.
 """