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Fix Ollama thinking mode - use think:false API parameter

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The /nothink prefix in prompt text doesn't work for Qwen3/DeepSeek.
The correct way is to pass "think": false in the API request body.

- Added think: false to all 4 Ollama API calls (extract, verify,
  stock status, arbitrate)
- Removed ineffective /nothink prefixes from prompts
- Kept stripThinkingTags() as additional fallback protection

Ref: https://docs.ollama.com/capabilities/thinking

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
clucraft 2026-01-25 14:45:22 -05:00
parent e8edc0c0e3
commit 57ba90ee25
1 changed files with 8 additions and 8 deletions
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16
backend/src/services/ai-extractor.ts
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@ -37,8 +37,7 @@ export interface AIStockStatusResult {
reason: string;
}
const VERIFICATION_PROMPT = `/nothink
You are a price and availability verification assistant. I scraped a product page and found a price. Please verify if this price is correct AND if the product is currently available for purchase.
const VERIFICATION_PROMPT = `You are a price and availability verification assistant. I scraped a product page and found a price. Please verify if this price is correct AND if the product is currently available for purchase.
Scraped Price: $SCRAPED_PRICE$ $CURRENCY$
@ -74,8 +73,7 @@ Only return valid JSON, no explanation text outside the JSON.
HTML Content:
`;
const STOCK_STATUS_PROMPT = `/nothink
You are an availability verification assistant. The user is tracking a SPECIFIC product variant priced at $VARIANT_PRICE$ $CURRENCY$.
const STOCK_STATUS_PROMPT = `You are an availability verification assistant. The user is tracking a SPECIFIC product variant priced at $VARIANT_PRICE$ $CURRENCY$.
Your task: Determine if THIS SPECIFIC VARIANT (the one at $VARIANT_PRICE$) is currently in stock and can be purchased.
@ -107,8 +105,7 @@ Only return valid JSON, no explanation text outside the JSON.
HTML Content:
`;
const EXTRACTION_PROMPT = `/nothink
You are a price extraction assistant. Analyze the following HTML content from a product page and extract the product information.
const EXTRACTION_PROMPT = `You are a price extraction assistant. Analyze the following HTML content from a product page and extract the product information.
Return a JSON object with these fields:
- name: The product name/title (string or null)
@ -295,6 +292,7 @@ async function extractWithOllama(
},
],
stream: false,
think: false, // Disable thinking mode for Qwen3/DeepSeek models
},
{
headers: {
@ -389,6 +387,7 @@ async function verifyWithOllama(
model: model,
messages: [{ role: 'user', content: prompt }],
stream: false,
think: false, // Disable thinking mode for Qwen3/DeepSeek models
},
{
headers: { 'Content-Type': 'application/json' },
@ -481,6 +480,7 @@ async function verifyStockStatusWithOllama(
model: model,
messages: [{ role: 'user', content: prompt }],
stream: false,
think: false, // Disable thinking mode for Qwen3/DeepSeek models
},
{
headers: { 'Content-Type': 'application/json' },
@ -827,8 +827,7 @@ export async function tryAIStockStatusVerification(
}
// Arbitration prompt for when multiple extraction methods disagree
const ARBITRATION_PROMPT = `/nothink
You are a price arbitration assistant. Multiple price extraction methods found different prices for the same product. Help determine the correct price.
const ARBITRATION_PROMPT = `You are a price arbitration assistant. Multiple price extraction methods found different prices for the same product. Help determine the correct price.
Found prices:
$CANDIDATES$
@ -937,6 +936,7 @@ async function arbitrateWithOllama(
model: model,
messages: [{ role: 'user', content: prompt }],
stream: false,
think: false, // Disable thinking mode for Qwen3/DeepSeek models
},
{
headers: { 'Content-Type': 'application/json' },