{ "name": "Compare options and get a recommendation", "nodes": [ { "parameters": { "content": "## Compare options and get a recommendation\nRead each option, pick the factors that matter for your decision, compare them in one table, drop the factors where the options tie, and get a recommendation that also argues the runner-up's case.\n\n**How to use**\n1. Open **Chat model** and pick your own credential. To use another AI service, delete that node, add the service's chat model node, and connect it to the Model plug under every step and AI check.\n2. Open **Inputs** and paste your material into each field. Examples are filled in so you can try it first.\n3. Click **Execute workflow**.\n4. Open **Result** to read the answer, anything flagged, and the checks left for you.\n\n**Checks**\n- Check 1 (a plain rule, run automatically with no AI): Every number in the answer also appears in the options. If it fails: try once more, then flag.\n- Check 2 (a plain rule, run automatically with no AI): Every row of the table has one of \"tie\" or \"differs\" in the Difference column. If it fails: try once more, then flag.\n- Check 3 (a plain rule, run automatically with no AI): Every row of the table has one of \"differs\" in the Difference column. If it fails: try once more, then flag.\n- Check 4 (a plain rule, run automatically with no AI): The answer includes the words \"Recommendation:\". If it fails: try once more, then flag.\n- Check 5 (a plain rule, run automatically with no AI): The answer includes the words \"What would change my mind:\". If it fails: try once more, then flag.\n- Check 6 (a plain rule, run automatically with no AI): Every number in the answer also appears in the options. If it fails: try once more, then flag.\n- Check 7 (a second AI prompt answers pass or fail): Read the reasons in the recommendation next to the factors table. Does every reason point to a factor that is in the table, with no reason that rests on something the options never said? Answer FAIL and name the reason if not. If it fails: try once more, then flag.\n- Check 8 (you check it by hand): Read the recommendation and the runner-up's case together. Is there a fact you know that the options text does not, such as how a vendor treated you before, that changes the answer? If it fails: flag it and carry on.\n\nFrom Logic Lab (logiclabhq.com). Free to use and adapt, with credit.", "height": 740, "width": 760, "color": 5 }, "id": "604ec5f0-aea7-4cb3-a4e0-73d6e08b3739", "name": "About this workflow", "type": "n8n-nodes-base.stickyNote", "typeVersion": 1, "position": [ -40, -700 ] }, { "parameters": {}, "id": "0def072c-dc9f-4e13-a6d5-dfdac96758f1", "name": "Start", "type": "n8n-nodes-base.manualTrigger", "typeVersion": 1, "position": [ 0, 320 ] }, { "parameters": { "assignments": { "assignments": [ { "id": "be276b79-eac2-4736-a529-532f08d6dd84", "name": "options", "value": "Sample:\nPlan A (Northside Cleaners): 240 dollars a month. Visits twice a week. Supplies included. One-month notice to cancel. Reviews mention they are sometimes late.\nPlan B (BrightOffice Services): 310 dollars a month. Visits three times a week. Supplies included. Twelve-month contract. Reviews mention thorough work.\nPlan C (In-house rota): no monthly cost. Staff share the cleaning. Supplies cost about 40 dollars a month. No notice needed.", "type": "string" }, { "id": "7751e13f-4e02-477e-a5bd-2e6156747a90", "name": "decision", "value": "Sample: Cleaning for a 12-person office. Cost matters, and the kitchen must be clean daily", "type": "string" }, { "id": "9644ec4d-4164-479e-a609-45838794256c", "name": "musts", "value": "Sample: Budget is 300 dollars a month at most. Must start by the first of next month.", "type": "string" } ] }, "options": {} }, "id": "9b691f85-151b-434c-ab11-7d8f44b524d6", "name": "Inputs", "type": "n8n-nodes-base.set", "typeVersion": 3.4, "position": [ 220, 320 ], "notes": "Paste your own material here: options = The options; decision = What you are deciding and for whom; musts = Must-haves and limits (optional).", "notesInFlow": true }, { "parameters": { "promptType": "define", "hasOutputParser": false, "text": "=You are a careful analyst who reads each option on its own terms.\n\nYour task is to list, for each option below, the facts the text states and the facts it leaves out.\n\nThe options:\n{{ $(\"Inputs\").first().json[\"options\"] }}\n\nWhat is being decided: {{ $(\"Inputs\").first().json[\"decision\"] }}\n\nRules:\n- Use only what the text says. Copy numbers exactly as written.\n- Under \"Not stated\", list things a person would need to know for this decision that the text does not say.\n- Do not compare the options yet and do not give an opinion.\n\nReturn one section per option, named as in the text, each with two short lists: Stated and Not stated.{{ $(\"Check 1: Every number comes from the options\").isExecuted ? \"\\n\\nYour last answer did not pass this check: Every number comes from the options. What was wrong: \" + $(\"Check 1: Every number comes from the options\").first().json.reason + \"\\nFix that and give your full answer again.\" : \"\" }}" }, "id": "bfff8557-a605-40fc-ab1f-d73546afd32a", "name": "1. Read each option", "type": "@n8n/n8n-nodes-langchain.chainLlm", "typeVersion": 1.7, "position": [ 480, 320 ], "notes": "List the facts stated about each option, and what is not stated. Returns: For each option, a list of stated facts and a list of facts that are missing.", "notesInFlow": true }, { "parameters": { "jsCode": "// Every number comes from the options\n// Rule: Every number in the answer also appears in the options.\n// Runs with no AI. Returns pass (true or false) and a reason.\nconst runRule = function runRule(rule, value, work, sources) {\n const norm = (s) => String(s ?? '')\n .toLowerCase()\n .replace(/[\\u2018\\u2019\\u201c\\u201d\"'`]/g, '')\n .replace(/\\s+/g, ' ')\n .trim();\n const readTable = (text) => {\n const lines = String(text ?? '')\n .split(/\\r?\\n/)\n .map((l) => l.trim());\n const tables = [];\n let cur = null;\n const cells = (l) => l\n .replace(/^\\|/, '')\n .replace(/\\|$/, '')\n .split('|')\n .map((c) => c.trim());\n for (let i = 0; i < lines.length; i++) {\n const l = lines[i] ?? '';\n if (!l.startsWith('|')) {\n cur = null;\n continue;\n }\n if (!cur) {\n const next = lines[i + 1] ?? '';\n if (/^\\|?\\s*:?-{2,}/.test(next)) {\n cur = { header: cells(l), rows: [] };\n tables.push(cur);\n i++;\n }\n continue;\n }\n cur.rows.push(cells(l));\n }\n return tables;\n };\n // Every table that has this column, with \"None found\" rows left out.\n // Returns that column's cells from every such table, or null if no table has it.\n const findColumn = (name) => {\n let seen = false;\n const cells = [];\n for (const t of readTable(work)) {\n const i = t.header.findIndex((h) => norm(h) === norm(name));\n if (i < 0)\n continue;\n seen = true;\n for (const r of t.rows) {\n if (r.some((c) => norm(c) === 'none found'))\n continue;\n cells.push(r[i] ?? '');\n }\n }\n return seen ? cells : null;\n };\n const empty = (c) => !c || /^[-\\u2013\\u2014\\s]*$/.test(c);\n switch (rule) {\n case 'has_text':\n return norm(work).includes(norm(value))\n ? { pass: true, reason: 'Found.' }\n : { pass: false, reason: `The answer does not include \"${value}\".` };\n case 'lacks_text':\n return norm(work).includes(norm(value))\n ? { pass: false, reason: `The answer includes \"${value}\", which it should not.` }\n : { pass: true, reason: 'Not found, as it should be.' };\n case 'max_words': {\n const n = String(work ?? '')\n .split(/\\s+/)\n .filter(Boolean).length;\n return n <= Number(value)\n ? { pass: true, reason: `${n} words.` }\n : { pass: false, reason: `The answer has ${n} words; the limit is ${value}.` };\n }\n case 'table_cells_filled': {\n const problems = [];\n for (const col of value) {\n const f = findColumn(col);\n if (!f) {\n problems.push(`No table with a \"${col}\" column was found.`);\n continue;\n }\n f.forEach((c, i) => {\n if (empty(c))\n problems.push(`Row ${i + 1} has nothing in \"${col}\".`);\n });\n }\n return problems.length\n ? { pass: false, reason: problems.join(' ') }\n : { pass: true, reason: 'Every row is filled in.' };\n }\n case 'column_values_in': {\n const f = findColumn(value.column);\n if (!f)\n return { pass: false, reason: `No table with a \"${value.column}\" column was found.` };\n const allowed = value.allowed.map(norm);\n const bad = [];\n f.forEach((c, i) => {\n if (!allowed.includes(norm(c)))\n bad.push(`Row ${i + 1} says \"${c}\".`);\n });\n return bad.length\n ? {\n pass: false,\n reason: `The \"${value.column}\" column must say ${value.allowed.join(' or ')}. ${bad.join(' ')}`,\n }\n : { pass: true, reason: 'Every row uses an allowed word.' };\n }\n case 'column_quotes_source': {\n const f = findColumn(value.column);\n if (!f)\n return { pass: false, reason: `No table with a \"${value.column}\" column was found.` };\n const src = norm(sources[value.input] ?? '');\n const bad = [];\n f.forEach((c, i) => {\n // A quote may be shortened with \"...\"; each piece must be in the source.\n const pieces = c\n .split(/\\.\\.\\.|\\u2026/)\n .map(norm)\n .filter(Boolean);\n if (!pieces.length || !pieces.every((p) => src.includes(p)))\n bad.push(`Row ${i + 1}: \"${c}\" is not in the source.`);\n });\n return bad.length\n ? { pass: false, reason: bad.join(' ') }\n : { pass: true, reason: 'Every quote was found in the source.' };\n }\n case 'numbers_in_source': {\n const nums = (s) => (String(s ?? '').match(/\\d[\\d,]*(?:\\.\\d+)?/g) ?? []).map((n) => n.replace(/,/g, ''));\n const src = new Set(nums(sources[value.input] ?? ''));\n const missing = [...new Set(nums(work))].filter((n) => !src.has(n));\n return missing.length\n ? {\n pass: false,\n reason: `These numbers are not in the source: ${missing.join(', ')}.`,\n }\n : { pass: true, reason: 'Every number was found in the source.' };\n }\n default:\n return { pass: false, reason: `Unknown rule \"${rule}\".` };\n }\n};\n\nconst work = String($(\"1. Read each option\").first().json.text ?? '');\nconst sources = {\n \"options\": String($(\"Inputs\").first().json[\"options\"] ?? ''),\n};\nconst result = runRule(\"numbers_in_source\", {\"input\":\"options\"}, work, sources);\nreturn [{ json: result }];" }, "id": "c219b9e5-8f14-4598-a067-a053ad04ebde", "name": "Check 1: Every number comes from the options", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 740, 320 ], "notes": "Every number in the answer also appears in the options.", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "8be1e4a7-fd4e-43ee-a555-f8c9dba1bca8", "leftValue": "={{ $json.pass === true }}", "rightValue": "", "operator": { "type": "boolean", "operation": "true", "singleValue": true } } ], "combinator": "and" }, "options": {} }, "id": "5562666c-5159-47cb-ae4c-3a222f29bad9", "name": "Passed check 1?", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 1000, 320 ], "notes": "True = passed. False = did not pass.", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "ab2d3894-be18-4669-a106-e1e6c0fe49b3", "leftValue": "={{ $runIndex }}", "rightValue": 0, "operator": { "type": "number", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "5d3917c4-b73e-45e1-a851-482ab88371e7", "name": "Try again? (check 1)", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 1000, 520 ], "notes": "True = first failure: send back to \"1. Read each option\" once. False = failed twice: flag it.", "notesInFlow": true }, { "parameters": { "assignments": { "assignments": [ { "id": "ce5570c5-45a8-4a44-a0d5-2f7b849b0582", "name": "flag", "value": "=Every number comes from the options: did not pass. {{ $(\"Check 1: Every number comes from the options\").first().json.reason }}", "type": "string" } ] }, "options": {} }, "id": "abd85c79-0aad-4358-a701-737fc1bfa45e", "name": "Flag check 1", "type": "n8n-nodes-base.set", "typeVersion": 3.4, "position": [ 1130, 700 ], "notes": "Notes the problem and carries on. The note shows in Result.", "notesInFlow": true }, { "parameters": { "promptType": "define", "hasOutputParser": false, "text": "=You are an analyst who builds clear comparison tables for decision makers.\n\nYour task is to pick the 4 to 7 factors that matter most for this decision, then compare every option on each factor in one table.\n\nWhat is being decided: {{ $(\"Inputs\").first().json[\"decision\"] }}\n\nMust-haves and limits:\n{{ $(\"Inputs\").first().json[\"musts\"] }}\n\nWhat each option says:\n{{ $(\"1. Read each option\").first().json.text }}\n\nRules:\n- Choose factors from what matters to the person deciding and from the must-haves. Do not choose a factor only because the options mention it.\n- Fill each cell in a few words, copying numbers exactly as written. If an option does not say, write \"not stated\".\n- In the last column, write \"tie\" if the options are the same in practice on that factor, or \"differs\" if they are not.\n- If an option fails a must-have, add a row called \"Meets the must-haves\" and say which option fails and why.\n- Do not recommend yet.\n\nReturn one markdown table with the factor in the first column, one column for each option, and a last column named Difference:\n| Factor | (option names, one column each) | Difference |{{ $(\"Check 2: Each factor is marked tie or differs\").isExecuted ? \"\\n\\nYour last answer did not pass this check: Each factor is marked tie or differs. What was wrong: \" + $(\"Check 2: Each factor is marked tie or differs\").first().json.reason + \"\\nFix that and give your full answer again.\" : \"\" }}" }, "id": "0c0b132c-a2ce-4aa7-a023-94cac01a7c4d", "name": "2. Build the comparison table", "type": "@n8n/n8n-nodes-langchain.chainLlm", "typeVersion": 1.7, "position": [ 1260, 320 ], "notes": "Choose the factors that matter for this decision and compare every option on each. Returns: A comparison table with a column for each option and a Difference column marked tie or differs.", "notesInFlow": true }, { "parameters": { "jsCode": "// Each factor is marked tie or differs\n// Rule: Every row of the table has one of \"tie\" or \"differs\" in the Difference column.\n// Runs with no AI. Returns pass (true or false) and a reason.\nconst runRule = function runRule(rule, value, work, sources) {\n const norm = (s) => String(s ?? '')\n .toLowerCase()\n .replace(/[\\u2018\\u2019\\u201c\\u201d\"'`]/g, '')\n .replace(/\\s+/g, ' ')\n .trim();\n const readTable = (text) => {\n const lines = String(text ?? '')\n .split(/\\r?\\n/)\n .map((l) => l.trim());\n const tables = [];\n let cur = null;\n const cells = (l) => l\n .replace(/^\\|/, '')\n .replace(/\\|$/, '')\n .split('|')\n .map((c) => c.trim());\n for (let i = 0; i < lines.length; i++) {\n const l = lines[i] ?? '';\n if (!l.startsWith('|')) {\n cur = null;\n continue;\n }\n if (!cur) {\n const next = lines[i + 1] ?? '';\n if (/^\\|?\\s*:?-{2,}/.test(next)) {\n cur = { header: cells(l), rows: [] };\n tables.push(cur);\n i++;\n }\n continue;\n }\n cur.rows.push(cells(l));\n }\n return tables;\n };\n // Every table that has this column, with \"None found\" rows left out.\n // Returns that column's cells from every such table, or null if no table has it.\n const findColumn = (name) => {\n let seen = false;\n const cells = [];\n for (const t of readTable(work)) {\n const i = t.header.findIndex((h) => norm(h) === norm(name));\n if (i < 0)\n continue;\n seen = true;\n for (const r of t.rows) {\n if (r.some((c) => norm(c) === 'none found'))\n continue;\n cells.push(r[i] ?? '');\n }\n }\n return seen ? cells : null;\n };\n const empty = (c) => !c || /^[-\\u2013\\u2014\\s]*$/.test(c);\n switch (rule) {\n case 'has_text':\n return norm(work).includes(norm(value))\n ? { pass: true, reason: 'Found.' }\n : { pass: false, reason: `The answer does not include \"${value}\".` };\n case 'lacks_text':\n return norm(work).includes(norm(value))\n ? { pass: false, reason: `The answer includes \"${value}\", which it should not.` }\n : { pass: true, reason: 'Not found, as it should be.' };\n case 'max_words': {\n const n = String(work ?? '')\n .split(/\\s+/)\n .filter(Boolean).length;\n return n <= Number(value)\n ? { pass: true, reason: `${n} words.` }\n : { pass: false, reason: `The answer has ${n} words; the limit is ${value}.` };\n }\n case 'table_cells_filled': {\n const problems = [];\n for (const col of value) {\n const f = findColumn(col);\n if (!f) {\n problems.push(`No table with a \"${col}\" column was found.`);\n continue;\n }\n f.forEach((c, i) => {\n if (empty(c))\n problems.push(`Row ${i + 1} has nothing in \"${col}\".`);\n });\n }\n return problems.length\n ? { pass: false, reason: problems.join(' ') }\n : { pass: true, reason: 'Every row is filled in.' };\n }\n case 'column_values_in': {\n const f = findColumn(value.column);\n if (!f)\n return { pass: false, reason: `No table with a \"${value.column}\" column was found.` };\n const allowed = value.allowed.map(norm);\n const bad = [];\n f.forEach((c, i) => {\n if (!allowed.includes(norm(c)))\n bad.push(`Row ${i + 1} says \"${c}\".`);\n });\n return bad.length\n ? {\n pass: false,\n reason: `The \"${value.column}\" column must say ${value.allowed.join(' or ')}. ${bad.join(' ')}`,\n }\n : { pass: true, reason: 'Every row uses an allowed word.' };\n }\n case 'column_quotes_source': {\n const f = findColumn(value.column);\n if (!f)\n return { pass: false, reason: `No table with a \"${value.column}\" column was found.` };\n const src = norm(sources[value.input] ?? '');\n const bad = [];\n f.forEach((c, i) => {\n // A quote may be shortened with \"...\"; each piece must be in the source.\n const pieces = c\n .split(/\\.\\.\\.|\\u2026/)\n .map(norm)\n .filter(Boolean);\n if (!pieces.length || !pieces.every((p) => src.includes(p)))\n bad.push(`Row ${i + 1}: \"${c}\" is not in the source.`);\n });\n return bad.length\n ? { pass: false, reason: bad.join(' ') }\n : { pass: true, reason: 'Every quote was found in the source.' };\n }\n case 'numbers_in_source': {\n const nums = (s) => (String(s ?? '').match(/\\d[\\d,]*(?:\\.\\d+)?/g) ?? []).map((n) => n.replace(/,/g, ''));\n const src = new Set(nums(sources[value.input] ?? ''));\n const missing = [...new Set(nums(work))].filter((n) => !src.has(n));\n return missing.length\n ? {\n pass: false,\n reason: `These numbers are not in the source: ${missing.join(', ')}.`,\n }\n : { pass: true, reason: 'Every number was found in the source.' };\n }\n default:\n return { pass: false, reason: `Unknown rule \"${rule}\".` };\n }\n};\n\nconst work = String($(\"2. Build the comparison table\").first().json.text ?? '');\nconst sources = {\n\n};\nconst result = runRule(\"column_values_in\", {\"column\":\"Difference\",\"allowed\":[\"tie\",\"differs\"]}, work, sources);\nreturn [{ json: result }];" }, "id": "81b1821a-c4aa-444d-ac7f-a2441dabe25f", "name": "Check 2: Each factor is marked tie or differs", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 1520, 320 ], "notes": "Every row of the table has one of \"tie\" or \"differs\" in the Difference column.", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "8ae1e314-fe4e-4581-a455-f736dca1be3b", "leftValue": "={{ $json.pass === true }}", "rightValue": "", "operator": { "type": "boolean", "operation": "true", "singleValue": true } } ], "combinator": "and" }, "options": {} }, "id": "5564a503-5157-4934-ae44-b4ddaf31401e", "name": "Passed check 2?", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 1780, 320 ], "notes": "True = passed. False = did not pass.", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "ac2d3a27-bd18-44d6-a206-e379bffe4820", "leftValue": "={{ $runIndex }}", "rightValue": 0, "operator": { "type": "number", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "dd31927f-3f3b-4a62-a053-ac89188ac4cc", "name": "Try again? (check 2)", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 1780, 520 ], "notes": "True = first failure: send back to \"2. Build the comparison table\" once. False = failed twice: flag it.", "notesInFlow": true }, { "parameters": { "assignments": { "assignments": [ { "id": "cd556f32-46a8-4bd7-afd5-2de8859b0715", "name": "flag", "value": "=Each factor is marked tie or differs: did not pass. {{ $(\"Check 2: Each factor is marked tie or differs\").first().json.reason }}", "type": "string" } ] }, "options": {} }, "id": "a8d857c0-0dad-4811-a801-7512c0bfa2cb", "name": "Flag check 2", "type": "n8n-nodes-base.set", "typeVersion": 3.4, "position": [ 1910, 700 ], "notes": "Notes the problem and carries on. The note shows in Result.", "notesInFlow": true }, { "parameters": { "promptType": "define", "hasOutputParser": false, "text": "=You are an analyst who removes noise from a comparison.\n\nYour task is to cut the table below down to only the factors where the options differ.\n\nThe table:\n{{ $(\"2. Build the comparison table\").first().json.text }}\n\nRules:\n- Remove every row marked \"tie\". Keep every row marked \"differs\", exactly as it is.\n- Always keep the row about the must-haves, if there is one, and mark it \"differs\".\n- After the table, add one line listing the factors you dropped, so the reader can see them.\n- Do not change any cell and do not add rows.\n\nReturn the shortened table in the same columns, then:\nDropped because the options tie: (the factors, or \"None\"){{ $(\"Check 3: Only differing factors are left\").isExecuted ? \"\\n\\nYour last answer did not pass this check: Only differing factors are left. What was wrong: \" + $(\"Check 3: Only differing factors are left\").first().json.reason + \"\\nFix that and give your full answer again.\" : \"\" }}" }, "id": "e0becc02-6925-4821-afeb-f3e4ad926643", "name": "3. Drop the factors where options tie", "type": "@n8n/n8n-nodes-langchain.chainLlm", "typeVersion": 1.7, "position": [ 2040, 320 ], "notes": "Remove the factors where the options are the same, so only the real differences are left. Returns: A table of only the factors where the options differ, and a list of the ones dropped.", "notesInFlow": true }, { "parameters": { "jsCode": "// Only differing factors are left\n// Rule: Every row of the table has one of \"differs\" in the Difference column.\n// Runs with no AI. Returns pass (true or false) and a reason.\nconst runRule = function runRule(rule, value, work, sources) {\n const norm = (s) => String(s ?? '')\n .toLowerCase()\n .replace(/[\\u2018\\u2019\\u201c\\u201d\"'`]/g, '')\n .replace(/\\s+/g, ' ')\n .trim();\n const readTable = (text) => {\n const lines = String(text ?? '')\n .split(/\\r?\\n/)\n .map((l) => l.trim());\n const tables = [];\n let cur = null;\n const cells = (l) => l\n .replace(/^\\|/, '')\n .replace(/\\|$/, '')\n .split('|')\n .map((c) => c.trim());\n for (let i = 0; i < lines.length; i++) {\n const l = lines[i] ?? '';\n if (!l.startsWith('|')) {\n cur = null;\n continue;\n }\n if (!cur) {\n const next = lines[i + 1] ?? '';\n if (/^\\|?\\s*:?-{2,}/.test(next)) {\n cur = { header: cells(l), rows: [] };\n tables.push(cur);\n i++;\n }\n continue;\n }\n cur.rows.push(cells(l));\n }\n return tables;\n };\n // Every table that has this column, with \"None found\" rows left out.\n // Returns that column's cells from every such table, or null if no table has it.\n const findColumn = (name) => {\n let seen = false;\n const cells = [];\n for (const t of readTable(work)) {\n const i = t.header.findIndex((h) => norm(h) === norm(name));\n if (i < 0)\n continue;\n seen = true;\n for (const r of t.rows) {\n if (r.some((c) => norm(c) === 'none found'))\n continue;\n cells.push(r[i] ?? '');\n }\n }\n return seen ? cells : null;\n };\n const empty = (c) => !c || /^[-\\u2013\\u2014\\s]*$/.test(c);\n switch (rule) {\n case 'has_text':\n return norm(work).includes(norm(value))\n ? { pass: true, reason: 'Found.' }\n : { pass: false, reason: `The answer does not include \"${value}\".` };\n case 'lacks_text':\n return norm(work).includes(norm(value))\n ? { pass: false, reason: `The answer includes \"${value}\", which it should not.` }\n : { pass: true, reason: 'Not found, as it should be.' };\n case 'max_words': {\n const n = String(work ?? '')\n .split(/\\s+/)\n .filter(Boolean).length;\n return n <= Number(value)\n ? { pass: true, reason: `${n} words.` }\n : { pass: false, reason: `The answer has ${n} words; the limit is ${value}.` };\n }\n case 'table_cells_filled': {\n const problems = [];\n for (const col of value) {\n const f = findColumn(col);\n if (!f) {\n problems.push(`No table with a \"${col}\" column was found.`);\n continue;\n }\n f.forEach((c, i) => {\n if (empty(c))\n problems.push(`Row ${i + 1} has nothing in \"${col}\".`);\n });\n }\n return problems.length\n ? { pass: false, reason: problems.join(' ') }\n : { pass: true, reason: 'Every row is filled in.' };\n }\n case 'column_values_in': {\n const f = findColumn(value.column);\n if (!f)\n return { pass: false, reason: `No table with a \"${value.column}\" column was found.` };\n const allowed = value.allowed.map(norm);\n const bad = [];\n f.forEach((c, i) => {\n if (!allowed.includes(norm(c)))\n bad.push(`Row ${i + 1} says \"${c}\".`);\n });\n return bad.length\n ? {\n pass: false,\n reason: `The \"${value.column}\" column must say ${value.allowed.join(' or ')}. ${bad.join(' ')}`,\n }\n : { pass: true, reason: 'Every row uses an allowed word.' };\n }\n case 'column_quotes_source': {\n const f = findColumn(value.column);\n if (!f)\n return { pass: false, reason: `No table with a \"${value.column}\" column was found.` };\n const src = norm(sources[value.input] ?? '');\n const bad = [];\n f.forEach((c, i) => {\n // A quote may be shortened with \"...\"; each piece must be in the source.\n const pieces = c\n .split(/\\.\\.\\.|\\u2026/)\n .map(norm)\n .filter(Boolean);\n if (!pieces.length || !pieces.every((p) => src.includes(p)))\n bad.push(`Row ${i + 1}: \"${c}\" is not in the source.`);\n });\n return bad.length\n ? { pass: false, reason: bad.join(' ') }\n : { pass: true, reason: 'Every quote was found in the source.' };\n }\n case 'numbers_in_source': {\n const nums = (s) => (String(s ?? '').match(/\\d[\\d,]*(?:\\.\\d+)?/g) ?? []).map((n) => n.replace(/,/g, ''));\n const src = new Set(nums(sources[value.input] ?? ''));\n const missing = [...new Set(nums(work))].filter((n) => !src.has(n));\n return missing.length\n ? {\n pass: false,\n reason: `These numbers are not in the source: ${missing.join(', ')}.`,\n }\n : { pass: true, reason: 'Every number was found in the source.' };\n }\n default:\n return { pass: false, reason: `Unknown rule \"${rule}\".` };\n }\n};\n\nconst work = String($(\"3. Drop the factors where options tie\").first().json.text ?? '');\nconst sources = {\n\n};\nconst result = runRule(\"column_values_in\", {\"column\":\"Difference\",\"allowed\":[\"differs\"]}, work, sources);\nreturn [{ json: result }];" }, "id": "47c15cfc-4287-4761-a1bf-bb32c776ae9f", "name": "Check 3: Only differing factors are left", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 2300, 320 ], "notes": "Every row of the table has one of \"differs\" in the Difference column.", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "8de1e7cd-fb4e-40c8-a355-f5a3dda1bfce", "leftValue": "={{ $json.pass === true }}", "rightValue": "", "operator": { "type": "boolean", "operation": "true", "singleValue": true } } ], "combinator": "and" }, "options": {} }, "id": "d567ad1a-d154-411d-ae47-bcf4af2f0187", "name": "Passed check 3?", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 2560, 320 ], "notes": "True = passed. False = did not pass.", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "ad2d3bba-bc18-4343-af06-dec0c2fe4cd9", "leftValue": "={{ $runIndex }}", "rightValue": 0, "operator": { "type": "number", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "013409c2-1b39-431f-a455-bf0c3488b249", "name": "Try again? (check 3)", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 2560, 520 ], "notes": "True = first failure: send back to \"3. Drop the factors where options tie\" once. False = failed twice: flag it.", "notesInFlow": true }, { "parameters": { "assignments": { "assignments": [ { "id": "cc556d9f-47a8-4d6a-a2d5-32a1829b025c", "name": "flag", "value": "=Only differing factors are left: did not pass. {{ $(\"Check 3: Only differing factors are left\").first().json.reason }}", "type": "string" } ] }, "options": {} }, "id": "a9d85953-0cad-467e-a901-76a5bfbfa138", "name": "Flag check 3", "type": "n8n-nodes-base.set", "typeVersion": 3.4, "position": [ 2690, 700 ], "notes": "Notes the problem and carries on. The note shows in Result.", "notesInFlow": true }, { "parameters": { "promptType": "define", "hasOutputParser": false, "text": "=You are a trusted advisor who gives a clear recommendation and explains it.\n\nYour task is to recommend one option from the table below.\n\nWhat is being decided: {{ $(\"Inputs\").first().json[\"decision\"] }}\n\nMust-haves and limits:\n{{ $(\"Inputs\").first().json[\"musts\"] }}\n\nThe factors where the options differ:\n{{ $(\"3. Drop the factors where options tie\").first().json.text }}\n\nThe original options:\n{{ $(\"Inputs\").first().json[\"options\"] }}\n\nRules:\n- Recommend an option that meets every must-have. If none does, say so and recommend the closest, naming what it misses.\n- Give three reasons at most, each tied to a factor in the table.\n- Say plainly what the person gives up by choosing it.\n- Use only numbers that appear in the options text. Do not add estimates or new figures.\n- Name the runner-up in one line.\n\nReturn in this shape and nothing else:\nRecommendation: (the option's name)\nWhy: (the reasons, each naming its factor)\nWhat you give up: (one or two lines)\nRunner-up: (the option's name){{ $(\"Check 4: A recommendation is named\").isExecuted ? \"\\n\\nYour last answer did not pass this check: A recommendation is named. What was wrong: \" + $(\"Check 4: A recommendation is named\").first().json.reason + \"\\nFix that and give your full answer again.\" : \"\" }}{{ $(\"Check 6: Every number in the recommendation is in the options\").isExecuted ? \"\\n\\nYour last answer did not pass this check: Every number in the recommendation is in the options. What was wrong: \" + $(\"Check 6: Every number in the recommendation is in the options\").first().json.reason + \"\\nFix that and give your full answer again.\" : \"\" }}{{ $(\"Check 7: Every reason names a factor from the table\").isExecuted ? \"\\n\\nYour last answer did not pass this check: Every reason names a factor from the table. What was wrong: \" + $(\"Check 7: Every reason names a factor from the table\").first().json.text + \"\\nFix that and give your full answer again.\" : \"\" }}" }, "id": "c28e617d-919f-4d26-a095-0b43330468a4", "name": "4. Recommend one option", "type": "@n8n/n8n-nodes-langchain.chainLlm", "typeVersion": 1.7, "position": [ 2820, 320 ], "notes": "Recommend one option with reasons tied to the factors that differ, and say what you give up. Returns: A recommendation with reasons, what is given up, and the runner-up.", "notesInFlow": true }, { "parameters": { "jsCode": "// A recommendation is named\n// Rule: The answer includes the words \"Recommendation:\".\n// Runs with no AI. Returns pass (true or false) and a reason.\nconst runRule = function runRule(rule, value, work, sources) {\n const norm = (s) => String(s ?? '')\n .toLowerCase()\n .replace(/[\\u2018\\u2019\\u201c\\u201d\"'`]/g, '')\n .replace(/\\s+/g, ' ')\n .trim();\n const readTable = (text) => {\n const lines = String(text ?? '')\n .split(/\\r?\\n/)\n .map((l) => l.trim());\n const tables = [];\n let cur = null;\n const cells = (l) => l\n .replace(/^\\|/, '')\n .replace(/\\|$/, '')\n .split('|')\n .map((c) => c.trim());\n for (let i = 0; i < lines.length; i++) {\n const l = lines[i] ?? '';\n if (!l.startsWith('|')) {\n cur = null;\n continue;\n }\n if (!cur) {\n const next = lines[i + 1] ?? '';\n if (/^\\|?\\s*:?-{2,}/.test(next)) {\n cur = { header: cells(l), rows: [] };\n tables.push(cur);\n i++;\n }\n continue;\n }\n cur.rows.push(cells(l));\n }\n return tables;\n };\n // Every table that has this column, with \"None found\" rows left out.\n // Returns that column's cells from every such table, or null if no table has it.\n const findColumn = (name) => {\n let seen = false;\n const cells = [];\n for (const t of readTable(work)) {\n const i = t.header.findIndex((h) => norm(h) === norm(name));\n if (i < 0)\n continue;\n seen = true;\n for (const r of t.rows) {\n if (r.some((c) => norm(c) === 'none found'))\n continue;\n cells.push(r[i] ?? '');\n }\n }\n return seen ? cells : null;\n };\n const empty = (c) => !c || /^[-\\u2013\\u2014\\s]*$/.test(c);\n switch (rule) {\n case 'has_text':\n return norm(work).includes(norm(value))\n ? { pass: true, reason: 'Found.' }\n : { pass: false, reason: `The answer does not include \"${value}\".` };\n case 'lacks_text':\n return norm(work).includes(norm(value))\n ? { pass: false, reason: `The answer includes \"${value}\", which it should not.` }\n : { pass: true, reason: 'Not found, as it should be.' };\n case 'max_words': {\n const n = String(work ?? '')\n .split(/\\s+/)\n .filter(Boolean).length;\n return n <= Number(value)\n ? { pass: true, reason: `${n} words.` }\n : { pass: false, reason: `The answer has ${n} words; the limit is ${value}.` };\n }\n case 'table_cells_filled': {\n const problems = [];\n for (const col of value) {\n const f = findColumn(col);\n if (!f) {\n problems.push(`No table with a \"${col}\" column was found.`);\n continue;\n }\n f.forEach((c, i) => {\n if (empty(c))\n problems.push(`Row ${i + 1} has nothing in \"${col}\".`);\n });\n }\n return problems.length\n ? { pass: false, reason: problems.join(' ') }\n : { pass: true, reason: 'Every row is filled in.' };\n }\n case 'column_values_in': {\n const f = findColumn(value.column);\n if (!f)\n return { pass: false, reason: `No table with a \"${value.column}\" column was found.` };\n const allowed = value.allowed.map(norm);\n const bad = [];\n f.forEach((c, i) => {\n if (!allowed.includes(norm(c)))\n bad.push(`Row ${i + 1} says \"${c}\".`);\n });\n return bad.length\n ? {\n pass: false,\n reason: `The \"${value.column}\" column must say ${value.allowed.join(' or ')}. ${bad.join(' ')}`,\n }\n : { pass: true, reason: 'Every row uses an allowed word.' };\n }\n case 'column_quotes_source': {\n const f = findColumn(value.column);\n if (!f)\n return { pass: false, reason: `No table with a \"${value.column}\" column was found.` };\n const src = norm(sources[value.input] ?? '');\n const bad = [];\n f.forEach((c, i) => {\n // A quote may be shortened with \"...\"; each piece must be in the source.\n const pieces = c\n .split(/\\.\\.\\.|\\u2026/)\n .map(norm)\n .filter(Boolean);\n if (!pieces.length || !pieces.every((p) => src.includes(p)))\n bad.push(`Row ${i + 1}: \"${c}\" is not in the source.`);\n });\n return bad.length\n ? { pass: false, reason: bad.join(' ') }\n : { pass: true, reason: 'Every quote was found in the source.' };\n }\n case 'numbers_in_source': {\n const nums = (s) => (String(s ?? '').match(/\\d[\\d,]*(?:\\.\\d+)?/g) ?? []).map((n) => n.replace(/,/g, ''));\n const src = new Set(nums(sources[value.input] ?? ''));\n const missing = [...new Set(nums(work))].filter((n) => !src.has(n));\n return missing.length\n ? {\n pass: false,\n reason: `These numbers are not in the source: ${missing.join(', ')}.`,\n }\n : { pass: true, reason: 'Every number was found in the source.' };\n }\n default:\n return { pass: false, reason: `Unknown rule \"${rule}\".` };\n }\n};\n\nconst work = String($(\"4. Recommend one option\").first().json.text ?? '');\nconst sources = {\n\n};\nconst result = runRule(\"has_text\", \"Recommendation:\", work, sources);\nreturn [{ json: result }];" }, "id": "12d12145-96ee-4ce0-ab52-d10fcc597b82", "name": "Check 4: A recommendation is named", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 3080, 320 ], "notes": "The answer includes the words \"Recommendation:\".", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "8ce1e63a-fc4e-425b-a255-f410dea1c161", "leftValue": "={{ $json.pass === true }}", "rightValue": "", "operator": { "type": "boolean", "operation": "true", "singleValue": true } } ], "combinator": "and" }, "options": {} }, "id": "d569ebb1-d165-4a3e-ae53-bf67af223594", "name": "Passed check 4?", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 3340, 320 ], "notes": "True = passed. False = did not pass.", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "ae2d3d4d-bb18-41b0-a006-e053c1fe4b46", "leftValue": "={{ $runIndex }}", "rightValue": 0, "operator": { "type": "number", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "612c521d-3336-4a50-ac44-6953347be656", "name": "Try again? (check 4)", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 3340, 520 ], "notes": "True = first failure: send back to \"4. Recommend one option\" once. False = failed twice: flag it.", "notesInFlow": true }, { "parameters": { "assignments": { "assignments": [ { "id": "cb556c0c-48a8-4efd-a1d5-310e839b03ef", "name": "flag", "value": "=A recommendation is named: did not pass. {{ $(\"Check 4: A recommendation is named\").first().json.reason }}", "type": "string" } ] }, "options": {} }, "id": "aed86132-0fad-4b37-a201-6ba0c6bfac3d", "name": "Flag check 4", "type": "n8n-nodes-base.set", "typeVersion": 3.4, "position": [ 3470, 700 ], "notes": "Notes the problem and carries on. The note shows in Result.", "notesInFlow": true }, { "parameters": { "promptType": "define", "hasOutputParser": false, "text": "=You are an honest devil's advocate who tests a recommendation before it is accepted.\n\nYour task is to make the strongest fair case for the runner-up option, then say what fact would change the recommendation.\n\nThe recommendation:\n{{ $(\"4. Recommend one option\").first().json.text }}\n\nThe factors where the options differ:\n{{ $(\"3. Drop the factors where options tie\").first().json.text }}\n\nThe original options:\n{{ $(\"Inputs\").first().json[\"options\"] }}\n\nRules:\n- Use only facts from the options text and the table. Do not invent advantages.\n- Argue for the runner-up as if you wanted it to win, but do not exaggerate.\n- Name one or two facts that are \"not stated\" in the options and could flip the choice if they turned out differently.\n- Do not change the recommendation yourself.\n\nReturn in this shape and nothing else:\nCase for the runner-up: (three or four sentences)\nWhat would change my mind: (one or two facts to find out, and which way each would push){{ $(\"Check 5: The facts that could change the answer are named\").isExecuted ? \"\\n\\nYour last answer did not pass this check: The facts that could change the answer are named. What was wrong: \" + $(\"Check 5: The facts that could change the answer are named\").first().json.reason + \"\\nFix that and give your full answer again.\" : \"\" }}" }, "id": "e6a40e10-1b29-4f0b-af11-598a870b235d", "name": "5. Argue the runner-up's case", "type": "@n8n/n8n-nodes-langchain.chainLlm", "typeVersion": 1.7, "position": [ 3600, 320 ], "notes": "Make the best honest case for the runner-up, and say what would change the recommendation. Returns: The runner-up's best case and the facts that could change the recommendation.", "notesInFlow": true }, { "parameters": { "jsCode": "// The facts that could change the answer are named\n// Rule: The answer includes the words \"What would change my mind:\".\n// Runs with no AI. Returns pass (true or false) and a reason.\nconst runRule = function runRule(rule, value, work, sources) {\n const norm = (s) => String(s ?? '')\n .toLowerCase()\n .replace(/[\\u2018\\u2019\\u201c\\u201d\"'`]/g, '')\n .replace(/\\s+/g, ' ')\n .trim();\n const readTable = (text) => {\n const lines = String(text ?? '')\n .split(/\\r?\\n/)\n .map((l) => l.trim());\n const tables = [];\n let cur = null;\n const cells = (l) => l\n .replace(/^\\|/, '')\n .replace(/\\|$/, '')\n .split('|')\n .map((c) => c.trim());\n for (let i = 0; i < lines.length; i++) {\n const l = lines[i] ?? '';\n if (!l.startsWith('|')) {\n cur = null;\n continue;\n }\n if (!cur) {\n const next = lines[i + 1] ?? '';\n if (/^\\|?\\s*:?-{2,}/.test(next)) {\n cur = { header: cells(l), rows: [] };\n tables.push(cur);\n i++;\n }\n continue;\n }\n cur.rows.push(cells(l));\n }\n return tables;\n };\n // Every table that has this column, with \"None found\" rows left out.\n // Returns that column's cells from every such table, or null if no table has it.\n const findColumn = (name) => {\n let seen = false;\n const cells = [];\n for (const t of readTable(work)) {\n const i = t.header.findIndex((h) => norm(h) === norm(name));\n if (i < 0)\n continue;\n seen = true;\n for (const r of t.rows) {\n if (r.some((c) => norm(c) === 'none found'))\n continue;\n cells.push(r[i] ?? '');\n }\n }\n return seen ? cells : null;\n };\n const empty = (c) => !c || /^[-\\u2013\\u2014\\s]*$/.test(c);\n switch (rule) {\n case 'has_text':\n return norm(work).includes(norm(value))\n ? { pass: true, reason: 'Found.' }\n : { pass: false, reason: `The answer does not include \"${value}\".` };\n case 'lacks_text':\n return norm(work).includes(norm(value))\n ? { pass: false, reason: `The answer includes \"${value}\", which it should not.` }\n : { pass: true, reason: 'Not found, as it should be.' };\n case 'max_words': {\n const n = String(work ?? '')\n .split(/\\s+/)\n .filter(Boolean).length;\n return n <= Number(value)\n ? { pass: true, reason: `${n} words.` }\n : { pass: false, reason: `The answer has ${n} words; the limit is ${value}.` };\n }\n case 'table_cells_filled': {\n const problems = [];\n for (const col of value) {\n const f = findColumn(col);\n if (!f) {\n problems.push(`No table with a \"${col}\" column was found.`);\n continue;\n }\n f.forEach((c, i) => {\n if (empty(c))\n problems.push(`Row ${i + 1} has nothing in \"${col}\".`);\n });\n }\n return problems.length\n ? { pass: false, reason: problems.join(' ') }\n : { pass: true, reason: 'Every row is filled in.' };\n }\n case 'column_values_in': {\n const f = findColumn(value.column);\n if (!f)\n return { pass: false, reason: `No table with a \"${value.column}\" column was found.` };\n const allowed = value.allowed.map(norm);\n const bad = [];\n f.forEach((c, i) => {\n if (!allowed.includes(norm(c)))\n bad.push(`Row ${i + 1} says \"${c}\".`);\n });\n return bad.length\n ? {\n pass: false,\n reason: `The \"${value.column}\" column must say ${value.allowed.join(' or ')}. ${bad.join(' ')}`,\n }\n : { pass: true, reason: 'Every row uses an allowed word.' };\n }\n case 'column_quotes_source': {\n const f = findColumn(value.column);\n if (!f)\n return { pass: false, reason: `No table with a \"${value.column}\" column was found.` };\n const src = norm(sources[value.input] ?? '');\n const bad = [];\n f.forEach((c, i) => {\n // A quote may be shortened with \"...\"; each piece must be in the source.\n const pieces = c\n .split(/\\.\\.\\.|\\u2026/)\n .map(norm)\n .filter(Boolean);\n if (!pieces.length || !pieces.every((p) => src.includes(p)))\n bad.push(`Row ${i + 1}: \"${c}\" is not in the source.`);\n });\n return bad.length\n ? { pass: false, reason: bad.join(' ') }\n : { pass: true, reason: 'Every quote was found in the source.' };\n }\n case 'numbers_in_source': {\n const nums = (s) => (String(s ?? '').match(/\\d[\\d,]*(?:\\.\\d+)?/g) ?? []).map((n) => n.replace(/,/g, ''));\n const src = new Set(nums(sources[value.input] ?? ''));\n const missing = [...new Set(nums(work))].filter((n) => !src.has(n));\n return missing.length\n ? {\n pass: false,\n reason: `These numbers are not in the source: ${missing.join(', ')}.`,\n }\n : { pass: true, reason: 'Every number was found in the source.' };\n }\n default:\n return { pass: false, reason: `Unknown rule \"${rule}\".` };\n }\n};\n\nconst work = String($(\"5. Argue the runner-up's case\").first().json.text ?? '');\nconst sources = {\n\n};\nconst result = runRule(\"has_text\", \"What would change my mind:\", work, sources);\nreturn [{ json: result }];" }, "id": "783ba9e5-5a1d-4fb2-af52-d1abb3e1a270", "name": "Check 5: The facts that could change the answer are named", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 3860, 320 ], "notes": "The answer includes the words \"What would change my mind:\".", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "87e1de5b-014e-4a3a-a955-ff15dfa1c2f4", "leftValue": "={{ $json.pass === true }}", "rightValue": "", "operator": { "type": "boolean", "operation": "true", "singleValue": true } } ], "combinator": "and" }, "options": {} }, "id": "d56c2a48-d163-4ba7-ae55-fdfeaf1ff6fd", "name": "Passed check 5?", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 4120, 320 ], "notes": "True = passed. False = did not pass.", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "a72d3248-c218-4cb5-a506-e832c4fe4fff", "leftValue": "={{ $runIndex }}", "rightValue": 0, "operator": { "type": "number", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "752eb030-1f34-4c3d-a046-e09610796f13", "name": "Try again? (check 5)", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 4120, 520 ], "notes": "True = first failure: send back to \"5. Argue the runner-up's case\" once. False = failed twice: flag it.", "notesInFlow": true }, { "parameters": { "assignments": { "assignments": [ { "id": "ca556a79-41a8-43f8-a4d5-35c7809aff36", "name": "flag", "value": "=The facts that could change the answer are named: did not pass. {{ $(\"Check 5: The facts that could change the answer are named\").first().json.reason }}", "type": "string" } ] }, "options": {} }, "id": "afd862c5-0ead-49a4-a301-6d33c5bfaaaa", "name": "Flag check 5", "type": "n8n-nodes-base.set", "typeVersion": 3.4, "position": [ 4250, 700 ], "notes": "Notes the problem and carries on. The note shows in Result.", "notesInFlow": true }, { "parameters": { "jsCode": "// Every number in the recommendation is in the options\n// Rule: Every number in the answer also appears in the options.\n// Runs with no AI. Returns pass (true or false) and a reason.\nconst runRule = function runRule(rule, value, work, sources) {\n const norm = (s) => String(s ?? '')\n .toLowerCase()\n .replace(/[\\u2018\\u2019\\u201c\\u201d\"'`]/g, '')\n .replace(/\\s+/g, ' ')\n .trim();\n const readTable = (text) => {\n const lines = String(text ?? '')\n .split(/\\r?\\n/)\n .map((l) => l.trim());\n const tables = [];\n let cur = null;\n const cells = (l) => l\n .replace(/^\\|/, '')\n .replace(/\\|$/, '')\n .split('|')\n .map((c) => c.trim());\n for (let i = 0; i < lines.length; i++) {\n const l = lines[i] ?? '';\n if (!l.startsWith('|')) {\n cur = null;\n continue;\n }\n if (!cur) {\n const next = lines[i + 1] ?? '';\n if (/^\\|?\\s*:?-{2,}/.test(next)) {\n cur = { header: cells(l), rows: [] };\n tables.push(cur);\n i++;\n }\n continue;\n }\n cur.rows.push(cells(l));\n }\n return tables;\n };\n // Every table that has this column, with \"None found\" rows left out.\n // Returns that column's cells from every such table, or null if no table has it.\n const findColumn = (name) => {\n let seen = false;\n const cells = [];\n for (const t of readTable(work)) {\n const i = t.header.findIndex((h) => norm(h) === norm(name));\n if (i < 0)\n continue;\n seen = true;\n for (const r of t.rows) {\n if (r.some((c) => norm(c) === 'none found'))\n continue;\n cells.push(r[i] ?? '');\n }\n }\n return seen ? cells : null;\n };\n const empty = (c) => !c || /^[-\\u2013\\u2014\\s]*$/.test(c);\n switch (rule) {\n case 'has_text':\n return norm(work).includes(norm(value))\n ? { pass: true, reason: 'Found.' }\n : { pass: false, reason: `The answer does not include \"${value}\".` };\n case 'lacks_text':\n return norm(work).includes(norm(value))\n ? { pass: false, reason: `The answer includes \"${value}\", which it should not.` }\n : { pass: true, reason: 'Not found, as it should be.' };\n case 'max_words': {\n const n = String(work ?? '')\n .split(/\\s+/)\n .filter(Boolean).length;\n return n <= Number(value)\n ? { pass: true, reason: `${n} words.` }\n : { pass: false, reason: `The answer has ${n} words; the limit is ${value}.` };\n }\n case 'table_cells_filled': {\n const problems = [];\n for (const col of value) {\n const f = findColumn(col);\n if (!f) {\n problems.push(`No table with a \"${col}\" column was found.`);\n continue;\n }\n f.forEach((c, i) => {\n if (empty(c))\n problems.push(`Row ${i + 1} has nothing in \"${col}\".`);\n });\n }\n return problems.length\n ? { pass: false, reason: problems.join(' ') }\n : { pass: true, reason: 'Every row is filled in.' };\n }\n case 'column_values_in': {\n const f = findColumn(value.column);\n if (!f)\n return { pass: false, reason: `No table with a \"${value.column}\" column was found.` };\n const allowed = value.allowed.map(norm);\n const bad = [];\n f.forEach((c, i) => {\n if (!allowed.includes(norm(c)))\n bad.push(`Row ${i + 1} says \"${c}\".`);\n });\n return bad.length\n ? {\n pass: false,\n reason: `The \"${value.column}\" column must say ${value.allowed.join(' or ')}. ${bad.join(' ')}`,\n }\n : { pass: true, reason: 'Every row uses an allowed word.' };\n }\n case 'column_quotes_source': {\n const f = findColumn(value.column);\n if (!f)\n return { pass: false, reason: `No table with a \"${value.column}\" column was found.` };\n const src = norm(sources[value.input] ?? '');\n const bad = [];\n f.forEach((c, i) => {\n // A quote may be shortened with \"...\"; each piece must be in the source.\n const pieces = c\n .split(/\\.\\.\\.|\\u2026/)\n .map(norm)\n .filter(Boolean);\n if (!pieces.length || !pieces.every((p) => src.includes(p)))\n bad.push(`Row ${i + 1}: \"${c}\" is not in the source.`);\n });\n return bad.length\n ? { pass: false, reason: bad.join(' ') }\n : { pass: true, reason: 'Every quote was found in the source.' };\n }\n case 'numbers_in_source': {\n const nums = (s) => (String(s ?? '').match(/\\d[\\d,]*(?:\\.\\d+)?/g) ?? []).map((n) => n.replace(/,/g, ''));\n const src = new Set(nums(sources[value.input] ?? ''));\n const missing = [...new Set(nums(work))].filter((n) => !src.has(n));\n return missing.length\n ? {\n pass: false,\n reason: `These numbers are not in the source: ${missing.join(', ')}.`,\n }\n : { pass: true, reason: 'Every number was found in the source.' };\n }\n default:\n return { pass: false, reason: `Unknown rule \"${rule}\".` };\n }\n};\n\nconst work = String($(\"4. Recommend one option\").first().json.text ?? '');\nconst sources = {\n \"options\": String($(\"Inputs\").first().json[\"options\"] ?? ''),\n};\nconst result = runRule(\"numbers_in_source\", {\"input\":\"options\"}, work, sources);\nreturn [{ json: result }];" }, "id": "b07fbaf1-1f69-41ea-abaf-46ab6dfb3d8c", "name": "Check 6: Every number in the recommendation is in the options", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 4380, 320 ], "notes": "Every number in the answer also appears in the options.", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "86e1dcc8-024e-4bcd-a855-fd82e0a1c487", "leftValue": "={{ $json.pass === true }}", "rightValue": "", "operator": { "type": "boolean", "operation": "true", "singleValue": true } } ], "combinator": "and" }, "options": {} }, "id": "d56e68df-d161-4d10-ae4e-78b92f277c42", "name": "Passed check 6?", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 4640, 320 ], "notes": "True = passed. False = did not pass.", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "a82d33db-c118-4b22-a606-e9c5c3fe4e6c", "leftValue": "={{ $runIndex }}", "rightValue": 0, "operator": { "type": "number", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "5527c20b-b731-49ee-a849-c2e59080f458", "name": "Try again? (check 6)", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 4640, 520 ], "notes": "True = first failure: send back to \"4. Recommend one option\" once. False = failed twice: flag it.", "notesInFlow": true }, { "parameters": { "assignments": { "assignments": [ { "id": "c95568e6-42a8-458b-a3d5-3434819b00c9", "name": "flag", "value": "=Every number in the recommendation is in the options: did not pass. {{ $(\"Check 6: Every number in the recommendation is in the options\").first().json.reason }}", "type": "string" } ] }, "options": {} }, "id": "acd85e0c-11ad-4e5d-a401-6ec6c4bfa917", "name": "Flag check 6", "type": "n8n-nodes-base.set", "typeVersion": 3.4, "position": [ 4770, 700 ], "notes": "Notes the problem and carries on. The note shows in Result.", "notesInFlow": true }, { "parameters": { "promptType": "define", "hasOutputParser": false, "text": "=You are a careful reviewer. You do not fix or rewrite the work; you only decide whether it passes one check.\n\nThe check: Every reason names a factor from the table\nRead the reasons in the recommendation next to the factors table. Does every reason point to a factor that is in the table, with no reason that rests on something the options never said? Answer FAIL and name the reason if not.\n\nThe options:\n{{ $(\"Inputs\").first().json[\"options\"] }}\n\nThe work to check (the answer from Step 4 (Recommend one option)):\n{{ $(\"4. Recommend one option\").first().json.text }}\n\nReply with exactly PASS or FAIL on the first line. On the second line, say in one sentence why. If it fails, name the exact item or line that fails. Do not add anything else." }, "id": "603d556b-f1cd-4720-aaa1-8b35dca2a922", "name": "Check 7: Every reason names a factor from the table", "type": "@n8n/n8n-nodes-langchain.chainLlm", "typeVersion": 1.7, "position": [ 4900, 320 ], "notes": "Answers PASS or FAIL. Read the reasons in the recommendation next to the factors table. Does every reason point to a factor that is in the table, with no reason that rests on something the options never said? Answer FAIL and name the reason if not.", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "89e1e181-ff4e-4714-a755-fbefe1a1c61a", "leftValue": "={{ String($json.text ?? '').trim().toUpperCase().startsWith('PASS') }}", "rightValue": "", "operator": { "type": "boolean", "operation": "true", "singleValue": true } } ], "combinator": "and" }, "options": {} }, "id": "557170f6-515e-44f9-ae51-80d0af24742b", "name": "Passed check 7?", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 5160, 320 ], "notes": "True = passed. False = did not pass.", "notesInFlow": true }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "loose", "version": 2 }, "conditions": [ { "id": "a92d356e-c018-498f-a306-e50cc6fe5325", "leftValue": "={{ $runIndex }}", "rightValue": 0, "operator": { "type": "number", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "792a394e-932f-42ab-ac4b-ee989c7ec8a5", "name": "Try again? (check 7)", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 5160, 520 ], "notes": "True = first failure: send back to \"4. Recommend one option\" once. False = failed twice: flag it.", "notesInFlow": true }, { "parameters": { "assignments": { "assignments": [ { "id": "c8556753-43a8-471e-a6d5-38ed7e9afc10", "name": "flag", "value": "=Every reason names a factor from the table: did not pass. {{ $(\"Check 7: Every reason names a factor from the table\").first().json.text }}", "type": "string" } ] }, "options": {} }, "id": "add85f9f-10ad-4cca-a501-7059c3bfa784", "name": "Flag check 7", "type": "n8n-nodes-base.set", "typeVersion": 3.4, "position": [ 5290, 700 ], "notes": "Notes the problem and carries on. The note shows in Result.", "notesInFlow": true }, { "parameters": { "content": "**Check 8: check by hand**\nRead the recommendation and the runner-up's case together. Is there a fact you know that the options text does not, such as how a vendor treated you before, that changes the answer?\n\nIf not: flag it and carry on. This check is also listed in Result.", "height": 200, "width": 240, "color": 3 }, "id": "a7053d7d-c22b-4df2-a8f3-0fff2de21fcc", "name": "Check 8 (by hand)", "type": "n8n-nodes-base.stickyNote", "typeVersion": 1, "position": [ 5140, 70 ] }, { "parameters": { "assignments": { "assignments": [ { "id": "0075df04-36c8-4fd7-ad64-943ee5d78969", "name": "result", "value": "={{ $(\"5. Argue the runner-up's case\").first().json.text }}", "type": "string" }, { "id": "1f2981ad-3743-4af4-a062-80cf6eabd6d6", "name": "flagged", "value": "={{ [$(\"Flag check 1\").isExecuted ? $(\"Flag check 1\").first().json.flag : \"\", $(\"Flag check 2\").isExecuted ? $(\"Flag check 2\").first().json.flag : \"\", $(\"Flag check 3\").isExecuted ? $(\"Flag check 3\").first().json.flag : \"\", $(\"Flag check 4\").isExecuted ? $(\"Flag check 4\").first().json.flag : \"\", $(\"Flag check 5\").isExecuted ? $(\"Flag check 5\").first().json.flag : \"\", $(\"Flag check 6\").isExecuted ? $(\"Flag check 6\").first().json.flag : \"\", $(\"Flag check 7\").isExecuted ? $(\"Flag check 7\").first().json.flag : \"\"].filter(x => x).join(\"\\n\") || \"None\" }}", "type": "string" }, { "id": "c263ada3-1d96-4902-a580-e9658b72cc44", "name": "check_by_hand", "value": "- Read the recommendation and the runner-up's case together. Is there a fact you know that the options text does not, such as how a vendor treated you before, that changes the answer?", "type": "string" } ] }, "options": {} }, "id": "7c4abb69-281e-4b90-a824-b4bb4443a26a", "name": "Result", "type": "n8n-nodes-base.set", "typeVersion": 3.4, "position": [ 5420, 320 ], "notes": "The final answer, anything flagged, and the checks left for you.", "notesInFlow": true }, { "parameters": { "options": {} }, "id": "7b4bc0cf-417b-4f42-a019-30e1f63e6fa4", "name": "Chat model", "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi", "typeVersion": 1.2, "position": [ 480, 840 ], "notes": "Attach your credential here, or swap in any chat model node.", "notesInFlow": true } ], "connections": { "Start": { "main": [ [ { "node": "Inputs", "type": "main", "index": 0 } ] ] }, "Inputs": { "main": [ [ { "node": "1. Read each option", "type": "main", "index": 0 } ] ] }, "1. Read each option": { "main": [ [ { "node": "Check 1: Every number comes from the options", "type": "main", "index": 0 } ] ] }, "Check 1: Every number comes from the options": { "main": [ [ { "node": "Passed check 1?", "type": "main", "index": 0 } ] ] }, "Passed check 1?": { "main": [ [ { "node": "2. Build the comparison table", "type": "main", "index": 0 } ], [ { "node": "Try again? (check 1)", "type": "main", "index": 0 } ] ] }, "Try again? (check 1)": { "main": [ [ { "node": "1. Read each option", "type": "main", "index": 0 } ], [ { "node": "Flag check 1", "type": "main", "index": 0 } ] ] }, "Flag check 1": { "main": [ [ { "node": "2. Build the comparison table", "type": "main", "index": 0 } ] ] }, "2. Build the comparison table": { "main": [ [ { "node": "Check 2: Each factor is marked tie or differs", "type": "main", "index": 0 } ] ] }, "Check 2: Each factor is marked tie or differs": { "main": [ [ { "node": "Passed check 2?", "type": "main", "index": 0 } ] ] }, "Passed check 2?": { "main": [ [ { "node": "3. Drop the factors where options tie", "type": "main", "index": 0 } ], [ { "node": "Try again? (check 2)", "type": "main", "index": 0 } ] ] }, "Try again? (check 2)": { "main": [ [ { "node": "2. Build the comparison table", "type": "main", "index": 0 } ], [ { "node": "Flag check 2", "type": "main", "index": 0 } ] ] }, "Flag check 2": { "main": [ [ { "node": "3. Drop the factors where options tie", "type": "main", "index": 0 } ] ] }, "3. Drop the factors where options tie": { "main": [ [ { "node": "Check 3: Only differing factors are left", "type": "main", "index": 0 } ] ] }, "Check 3: Only differing factors are left": { "main": [ [ { "node": "Passed check 3?", "type": "main", "index": 0 } ] ] }, "Passed check 3?": { "main": [ [ { "node": "4. Recommend one option", "type": "main", "index": 0 } ], [ { "node": "Try again? (check 3)", "type": "main", "index": 0 } ] ] }, "Try again? (check 3)": { "main": [ [ { "node": "3. Drop the factors where options tie", "type": "main", "index": 0 } ], [ { "node": "Flag check 3", "type": "main", "index": 0 } ] ] }, "Flag check 3": { "main": [ [ { "node": "4. Recommend one option", "type": "main", "index": 0 } ] ] }, "4. Recommend one option": { "main": [ [ { "node": "Check 4: A recommendation is named", "type": "main", "index": 0 } ] ] }, "Check 4: A recommendation is named": { "main": [ [ { "node": "Passed check 4?", "type": "main", "index": 0 } ] ] }, "Passed check 4?": { "main": [ [ { "node": "5. Argue the runner-up's case", "type": "main", "index": 0 } ], [ { "node": "Try again? (check 4)", "type": "main", "index": 0 } ] ] }, "Try again? (check 4)": { "main": [ [ { "node": "4. Recommend one option", "type": "main", "index": 0 } ], [ { "node": "Flag check 4", "type": "main", "index": 0 } ] ] }, "Flag check 4": { "main": [ [ { "node": "5. Argue the runner-up's case", "type": "main", "index": 0 } ] ] }, "5. Argue the runner-up's case": { "main": [ [ { "node": "Check 5: The facts that could change the answer are named", "type": "main", "index": 0 } ] ] }, "Check 5: The facts that could change the answer are named": { "main": [ [ { "node": "Passed check 5?", "type": "main", "index": 0 } ] ] }, "Passed check 5?": { "main": [ [ { "node": "Check 6: Every number in the recommendation is in the options", "type": "main", "index": 0 } ], [ { "node": "Try again? (check 5)", "type": "main", "index": 0 } ] ] }, "Try again? (check 5)": { "main": [ [ { "node": "5. Argue the runner-up's case", "type": "main", "index": 0 } ], [ { "node": "Flag check 5", "type": "main", "index": 0 } ] ] }, "Flag check 5": { "main": [ [ { "node": "Check 6: Every number in the recommendation is in the options", "type": "main", "index": 0 } ] ] }, "Check 6: Every number in the recommendation is in the options": { "main": [ [ { "node": "Passed check 6?", "type": "main", "index": 0 } ] ] }, "Passed check 6?": { "main": [ [ { "node": "Check 7: Every reason names a factor from the table", "type": "main", "index": 0 } ], [ { "node": "Try again? (check 6)", "type": "main", "index": 0 } ] ] }, "Try again? (check 6)": { "main": [ [ { "node": "4. Recommend one option", "type": "main", "index": 0 } ], [ { "node": "Flag check 6", "type": "main", "index": 0 } ] ] }, "Flag check 6": { "main": [ [ { "node": "Check 7: Every reason names a factor from the table", "type": "main", "index": 0 } ] ] }, "Check 7: Every reason names a factor from the table": { "main": [ [ { "node": "Passed check 7?", "type": "main", "index": 0 } ] ] }, "Passed check 7?": { "main": [ [ { "node": "Result", "type": "main", "index": 0 } ], [ { "node": "Try again? (check 7)", "type": "main", "index": 0 } ] ] }, "Try again? (check 7)": { "main": [ [ { "node": "4. Recommend one option", "type": "main", "index": 0 } ], [ { "node": "Flag check 7", "type": "main", "index": 0 } ] ] }, "Flag check 7": { "main": [ [ { "node": "Result", "type": "main", "index": 0 } ] ] }, "Chat model": { "ai_languageModel": [ [ { "node": "1. Read each option", "type": "ai_languageModel", "index": 0 }, { "node": "2. Build the comparison table", "type": "ai_languageModel", "index": 0 }, { "node": "3. Drop the factors where options tie", "type": "ai_languageModel", "index": 0 }, { "node": "4. Recommend one option", "type": "ai_languageModel", "index": 0 }, { "node": "5. Argue the runner-up's case", "type": "ai_languageModel", "index": 0 }, { "node": "Check 7: Every reason names a factor from the table", "type": "ai_languageModel", "index": 0 } ] ] } }, "pinData": {}, "settings": { "executionOrder": "v1" }, "meta": { "template": "compare-options" } }