Step 0: Set the rules
My master resume is: [paste it]. The posting I am targeting is: [paste the full description]. Never invent an employer, job title, date, credential, tool or number — every fact comes from my master resume or from what I tell you. Do not rewrite the whole document. Only my summary, my skills order, and two or three bullets may change; everything else must come out byte-identical, and I want you to tell me at the end whether anything else moved.
Step 1: Read the posting as a weighting, not a list
Read the posting and identify what it actually weighs, in priority order: the exact job title; every named tool, platform or language; every required certification or licence; the two or three skills it repeats across more than one section; and the specific outcomes it asks for, which usually tell you what the role's hard part is. Then tell me which requirements are genuine hard gates — a licence, a clearance, a minimum number of years, a location — because those are questions I answer rather than lines I write.
Step 2: Pull the terms the way the posting spells them
List the 8 to 15 terms from Step 1 in the posting's own spelling and capitalisation. Give me a table: Term | Where in the posting it appears | Where in my resume it appears | Does it sit inside a dated bullet or alone in a skills list. A term alone in a skills list is one token. The same term inside a dated bullet with a result is evidence. Tell me which of my terms are orphaned.
Step 3: Map requirements to evidence, and refuse the gaps
For each requirement, find the one place in my master resume that proves it, and give me a table: Requirement | My evidence | Status, where Status is supported, thin, or nothing. For every nothing, say plainly what would have to be invented to close it, and do not invent it. If a hard gate from Step 1 is not supported, tell me now rather than at the end — that is a reason not to apply, not a writing problem.
Step 4: Rewrite only the top third
Give me before and after for exactly three things and nothing else. First, my summary, rewritten to lead with the posting's exact title and to carry two or three of the Step 2 terms naturally. Second, my skills section reordered so the posting's weighted terms come first, with no term added that was not already in my master resume. Third, two or three bullets, each rewritten as action verb, task, tool, result, with at least one Step 2 term carried inside the sentence so the literal word and the proof arrive together. Do not reword any other line.
Step 5: Check for over-matching
Read my proposed text as the employer's screening system would. Tell me: does any sentence track the posting's wording closely enough to read as copied? Have I put more than about fifteen terms on the page? Have I used a term from the posting in a way my evidence does not support? Fix anything you find, then show me what you changed and why.
Step 6: Hand back the variant and the verdict
Give me the plain-text variant with only those changes applied, then a two-line verdict: is this posting worth applying to given what I actually have, and which requirement is the weakest link. Tell me what to drop if I have three roles to choose between, rather than telling me all three are worth it.