LeaveSheet: Davis-Bacon wage rates and WH-347 certified payroll

Use when a contractor pays a fringe plan (health, pension…) for a worker who also does private work, and needs the hourly credit it may take on Davis-Bacon payrolls. Applies 29 CFR 5.25(c): plan cost divided by all hours worked, over-credit and fringe owed on DBRA hours, and the defined-contribution pension exception checks. Example: annualPlanCost=9600, totalHoursWorked=2000, dbraHours=600, plan={kind:"health"}, claimedHourlyCredit=8.

Use when the user is ready to produce the weekly certified payroll (WH-347 PDF or Excel). Computes the WH-347 columns for the crew and returns a link to the export page where the files are generated in the browser; the crew data travels in the URL fragment, which is never sent to the server. The optional last 4 digits of each SSN are typed by the user on that page only. Do not put SSNs or addresses in the arguments. Up to 50 workers.

Use when the user wants to know whether each worker on a Davis-Bacon job was paid at least the WD rate for a payroll week. For every worker and classification it computes the base and fringe due vs. paid, recomputes overtime (hours over 40 in the workweek, 29 CFR 5.5(b)(1) and 5.32), checks apprentice registration and the daily apprentice ratio (29 CFR 5.5(a)(4)), and totals the restitution owed, each amount with its CFR citation; also returns the WH-347 lines as paid. Up to 50 workers. Either pass the pasted WD text (wdText) and link each segment to a row with wdRowId (from get_wage_rates on the same text), or give the WD rate of each segment directly (rate) as the user reads it in the contract. Example: wdText="General Decision Number: TX20260291 …", weekEnding="2026-06-07", workers=[{name:"Crew 1", segments:[{classification:"Welder", wdRowId:"r1", stByDay:[8,8,8,8,8], paidBaseRate:22}]}].

Use when the user asks what changed between two modifications of the same WD (e.g. the one in the contract vs. the latest one) and pastes both texts. Lists classifications added, removed and those whose base or fringe changed, with old and new amounts and the verbatim rows. Example: wdTextA="General Decision Number: CA20260001 … (modification 2)", wdTextB="… (modification 3)".

Use when a worker performs a classification that is missing from the WD and the contractor must ask the contracting officer to add it. Fills the SF-1444 fields, compares the proposed rate with related WD classifications, and checks the criteria of 29 CFR 5.5(a)(1)(iii)(A) (each answered yes / no / to verify). Related classifications come from neighbourRowIds (get_wage_rates on the pasted wdText, passed again here) or are given directly. Example: missingClassification="Drone operator", tasks=["aerial survey"], wd="TX20260291", wdText="General Decision Number: TX20260291 …", neighbourRowIds=["r1"], proposed={base:24,fringe:0}.

Use when the user needs the general wage determination (WD) for a federally funded construction project. This tool makes no network call: it explains where the WD is (the one incorporated in the contract or bid documents, starting with "General Decision Number"), builds the sam.gov search link with the filters to set (state, county, construction type) for the user to open, and quotes the revision rules of 29 CFR 1.6(c). If the user pastes the WD text (wdText) with the contract award date, it reads the modification table and picks the modification that applies under 29 CFR 1.6(c). Example: state="TX", county="Travis", constructionType="Highway", awardDate="2026-06-01". Then call get_wage_rates with the pasted text.

Use when the user needs the prevailing base rate and fringe of one or more classifications and has the text of the WD (pasted from the contract or the sam.gov page). Reads the pasted text and returns each matching classification row (craft, classification, zone, base and fringe $/h with the rule they come from, notes, parse confidence) plus the verbatim excerpt and the sam.gov page to check it. rowId values feed check_crew_pay and draft_conformance_request when the same text is passed. Example: wdText="General Decision Number: TX20260291 05/18/2026 …", search="welder".

Use when the user wants to check that the fringe credited on the WH-347 (column 6B) matches what was paid to each plan (health and welfare, pension, vacation, training) for the week. Same computation as the wh347_fringe_reconcile tool of leavesheet-mcp: 6B per line, totals per plan, reconciles when |sum 6B − sum plans| < 0.005. Up to 50 workers.