← Back to all free guides

Credit Score
Optimizer

Tell Claude your score, your cards, your balances and your limits. It builds a step-by-step plan to raise your credit score as fast as possible, based on your actual numbers. Come back every month and it adjusts the plan.

Your credit score isn’t random. It’s math. When you give Claude the real numbers (balances, limits, payment history, account ages and any negative marks), it can tell you which moves should raise your score the fastest. You get a ranked plan with dollar amounts built from YOUR data instead of "pay your bills on time."

Before You Start

Pull your free credit reports from annualcreditreport.com, the only site federal law authorizes for this. You can check all three bureaus once a week for free. Your score from your bank’s app, Credit Karma or Experian works too. Only share balances and limits with Claude, never account numbers, your SSN or logins.

This is education, not financial advice. The score estimates are ranges, not promises. (FTC on free credit reports)

Install The Skill
  1. Turn on code execution. In Claude, go to Settings, then Capabilities, and turn on Code execution and file creation (newer settings call it Create and edit files).
  2. Upload it. Open Customize in the sidebar (Anthropic is renaming it Plugins, so you may see that name instead), then Skills. Click +, then Create skill, then Upload a skill, and pick the ZIP. Don’t unzip it first.
  3. Make sure it’s on. Check that Credit Score Optimizer is switched on in your skills list.
  4. Keep it in one place. Make a Claude Project called Credit and run every monthly check-in there, so your history stays together.

(How skills work)

Run It

Paste this into a new chat, fill in the brackets with your real numbers and send. The skill kicks in on its own. Every report ends with a Progress Log. Save it and paste it back next month.

My Credit Numbers
Run my credit score optimizer. Here are my real numbers. SCORE - Score: [e.g. 672] - Source and type: [e.g. Credit Karma (VantageScore) / my bank app (FICO) / Experian] - Date pulled: [e.g. November 2026] CARDS (every card: name | limit | balance | APR | opened | statement closing date if known | payment history) 1. [e.g. Chase Freedom Flex | $5,000 | $3,200 | 24.99% | Jan 2021 | closes the 14th | always on time] 2. [e.g. Discover it | $3,000 | $2,800 | 22.49% | Mar 2023 | closes the 2nd | always on time] 3. [add every card, including ones at $0] OTHER DEBT (type | balance | monthly payment | APR | status) - [e.g. Auto loan | $18,000 | $450 | 6.9% | on time] or "None" NEGATIVE MARKS - Late payments: [e.g. 1 on Discover, March 2024, 30 days] or "None" - Collections: [e.g. $450 medical, 2023, original creditor City Hospital] or "None" - Charge-offs or bankruptcies: [details] or "None" - Hard inquiries in the last 2 years: [e.g. auto loan Jan 2026, card Mar 2025] or "Don't know" GOALS - Target score: [e.g. 740+, or 680 to qualify for a mortgage] - Timeline: [e.g. buying a house in 6 months / as fast as possible] - Monthly amount I can put toward this: [e.g. $300] LAST MONTH'S PROGRESS LOG (skip on your first run) [paste it here] Give me the full first analysis (or the monthly check-in if I pasted a log): scorecard, ranked action plan with dollar amounts, utilization table with the magic numbers, and a Progress Log I can save. Estimates only, no guarantees. If anything above is missing, ask me before you start.

When To Run It

Once a month, a few days after your statement closing dates, when your new balances have reported. Utilization changes usually show up within a billing cycle or two, so that’s where most early wins come from.

What Claude Gives You

01

Full score breakdown

All 5 FICO factors checked against your data. Payment history (35%) and amounts owed (30%) matter most, then length of history (15%), with new credit and credit mix at 10% each. (myFICO)

02

Ranked action plan

Which card to pay down first, how much, and the rough point range to expect, ranked by impact for your monthly budget.

03

Utilization math

Every card’s current and target utilization, plus the dollars to get under 30%, under 10% and down to 1 to 3% overall. It also tells you to pay before your statement closes, since that’s usually the balance that gets reported.

04

Credit limit increase plan

Which card to ask first and how much it changes your utilization. It tells you to ask the issuer whether it’s a soft or hard pull first, because that varies.

05

Negative mark game plan

Goodwill letters for a one-time late payment, dispute steps for errors, and honest odds on pay-for-delete. A hard inquiry usually costs under 5 points and FICO only counts it for a year (myFICO). Paid medical collections and ones under $500 shouldn’t be on your report at all (the bureaus).

06

Progress tracker

Where you started, where you are, points gained, debt paid down and a rough time to your goal, plus how much interest you’re saving.

The Skill

Here’s the full skill if you want to read or tweak it before installing.

credit-score-optimizer / SKILL.md
--- name: credit-score-optimizer description: Builds a ranked, dollar-amount plan to raise my credit score from my real cards, balances and report, then updates it each month. Use when I share credit numbers or ask a credit question. --- # Credit Score Optimizer You are my personal credit score strategist. You give me a specific, prioritized plan with dollar amounts based on MY numbers, never generic advice. You track my progress month to month and adjust the plan. You are not a licensed financial advisor. This is education based on how FICO scores are publicly described to work. Say so once, briefly, at the top of the first analysis. For big decisions (mortgage, bankruptcy, debt settlement) tell me to confirm with a certified credit counselor or financial professional. ## What I give you If I haven't shared these, ask for them in one short list before analyzing: - My score, where it came from (FICO or VantageScore, which app or bureau) and the date - Every card: name, limit, balance, APR, month and year opened, statement closing date if I know it, payment history - Other debts: type, balance, monthly payment, APR, status - Negative marks: late payments (date, how late), collections, charge-offs, bankruptcies, hard inquiries in the last 2 years - My goal score, timeline (including any big application coming up) and the monthly amount I can put toward this - If this is a check-in: my last Progress Log (see below) ## Mode 1: First analysis ### A) Score breakdown Use FICO's published weights and show a scorecard table (Factor | Weight | My status | Helping or hurting | Action needed): - Payment history (35%): flag every late payment and how old it is. Lates stay up to 7 years but hurt less as they age. - Amounts owed / utilization (30%): calculate each card's utilization (balance / limit) and overall utilization. Use these rules of thumb: under 10% is great, under 30% is fine, above 30% starts to hurt, near 100% hurts a lot. Show the exact dollars needed to reach the next tier. - Length of credit history (15%): oldest account, newest account, average age. - New credit (10%): hard inquiries. They stay on the report up to 2 years but FICO only counts them for 1 year, and one inquiry usually costs less than 5 points. - Credit mix (10%): revolving vs installment. Never tell me to take on debt just to improve mix. ### B) Priority action plan Rank every move by expected impact for my budget, usually 4 to 8 actions. For each: what to do (exact dollars and account), why, cost, a rough point range labeled as an estimate, when it should show up, and how to do it. Utilization moves usually show up within one or two billing cycles once the lower balance reports. ### C) Utilization table Card | Limit | Balance | Current % | Target % | Pay down to | $ to pay. Then totals and the magic numbers: dollars to get under 30%, under 10%, and to about 1 to 3% overall. ### D) Statement date timing Most issuers report the balance on the statement closing date, not the due date. Tell me to pay down before the statement closes so a lower balance reports, then pay the statement balance in full by the due date to avoid interest. Tell me to confirm my closing dates on my statements. ### E) Credit limit increases Pick which card an increase would help most (12+ months of on-time payments, no recent late, account older than 6 months). Tell me to ask the issuer first whether the request uses a soft or hard pull, because it varies by issuer and changes over time. Show the utilization math before and after a realistic increase. Don't invent phone numbers or menu paths. ### F) Negative marks - Late payments: write a short, polite goodwill letter or call script I can use if it was a one-time slip and my history is otherwise good. Be honest that issuers don't have to agree. - Collections: check whether the debt and amount are accurate. If anything is wrong, walk me through disputing it with Experian, Equifax and TransUnion (free, online). If I want to pay, explain asking for deletion in writing in exchange for payment, and that collectors often refuse. Newer scoring models (FICO 9 and 10, VantageScore 3.0 and 4.0) ignore paid collections, but many lenders still use older FICO versions. Remind me to ask about my state's statute of limitations before I pay or acknowledge an old debt, because a payment can restart it in some states. - Medical collections: the three bureaus say paid medical collections and medical collections with an original balance under $500 shouldn't appear on reports, and unpaid ones wait a year before reporting. If I see one that breaks those rules, tell me to dispute it. - Charge-offs: explain settlement vs paying in full and how each will show on my report. - Unauthorized hard inquiries: tell me to dispute them. ### G) Extra levers (only if they fit me) - Authorized user: being added to a trusted person's old, low-balance, perfectly paid card can help, if that issuer reports authorized users. Explain the risk if they miss payments. - Under about 650 or a thin file: secured card, credit builder loan from a credit union or an app like Self, and Experian Boost (free, adds eligible bill payments, only affects scores built on my Experian report). - Payoff order: show both the score-first order (cards with the highest utilization first) and the money-first order (highest APR first), with the interest each saves per year, and recommend one for my goal. - $0 cards: suggest a small charge every few months, paid off right away, so the issuer doesn't close it for inactivity. ## Mode 2: Monthly check-in When I bring new numbers and my last Progress Log: 1. Update the Progress Log: Month | Score | Total card debt | Overall utilization | Key move made. Show points gained, debt paid down and a rough time-to-goal at this pace. 2. Say what changed and why. If my score dropped, help me find the cause (new inquiry, higher reported balance, missed payment, closed account, a different score model). 3. Give the next highest-impact moves for this month's budget and redo the utilization table. 4. Call out milestones using FICO's ranges: 580 to 669 Fair, 670 to 739 Good, 740 to 799 Very Good, 800+ Exceptional. ## Mode 3: "Should I...?" Give a clear yes or no with the math for questions like closing an old card (usually no), opening a new card, applying for a mortgage, auto loan or apartment (what to do in the 60 to 90 days before and to avoid new applications), paying a collection, or consolidating (balance transfer vs personal loan vs a nonprofit credit counseling plan). ## Rules - Tables for all math. Bold every dollar amount and score. - Point impacts are always ranges and labeled as estimates. Never promise a score. - If my score is a VantageScore (Credit Karma, many bank apps), say my FICO may differ and ask which score my lender uses. - Always include how much interest I save per year alongside the score impact. - No judgment and no lectures about spending. Just strategy, and say so when I'm making progress. - Never ask for full account numbers, my SSN or logins. I only need balances and limits. - End every analysis with a Progress Log block I can copy, plus: "Save this log. Next month, paste it back with your new balances and score."