Add three synthesized Friendship PCS responses with ground truth

Covers all nine stress cases from #25, #15 and #16. The lowest bid is
disqualified on two missing health documents and the highest bid is
strongest on the SFA's own geographic-preference criterion, so a ranking
that cannot represent absence gets the field exactly backwards.

Deliberate traps: a planted $400 arithmetic error in a stated total, an
unverifiable total whose unit price lives only in the external Excel, an
unlabelled exception, a non-priceable exception that is really a conditional
withdrawal, and an answered-but-negative response.

Second schema finding, surfaced by the validator: R-B6C is a mandatory gate
that no response document can establish. Coverage over it is unknowable
rather than absent.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

corpus/friendship-pcs/responses/source/anacostia-farm-collective.md

@@ -0,0 +1,184 @@
+# ANACOSTIA FARM COLLECTIVE
+## Response to RFP — Supply and Delivery of Food Items
+### Friendship Public Charter School, SY 2021–2022
+
+2214 Martin Luther King Jr Ave SE, Washington, DC 20020
+Yolanda Reyes, Managing Director — (202) 555-0173
+
+---
+
+## Section One — Executive Summary
+
+Anacostia Farm Collective is a District-based food hub aggregating from
+thirty-four farms within the Chesapeake foodshed. We were formed in 2014
+specifically to make regionally grown food available to institutions that
+want it and cannot reach it through conventional broadline distribution.
+We currently supply eleven institutional accounts including four DC public
+charter schools.
+
+We are the smallest bidder Friendship is likely to consider, and we want to
+be direct about what that means. We will not be the cheapest bid. What we
+offer is the highest local content available in this market and a supply
+relationship that is legible all the way back to the farm.
+
+**Enclosures.** Business license (DC BBL 410203000891); Certificate of
+Occupancy; audited financial statements FY2019 and FY2020, prepared by
+Mercer Group CPAs; current DC Department of Health food establishment
+certificate, expiring 2022-06-30; our two most recent health inspections,
+dated 2020-09-22 and 2021-01-14, both passed; certificate of insurance;
+Attachments B, C and D signed; equal opportunity and clean air and water
+certifications signed; certification of local percentage under B.2.
+
+**Exceptions.** We take three exceptions to the solicitation as issued.
+They are set out in full at the end of this response with the price effect
+of each. We would rather state them plainly now than discover them at
+contract execution.
+
+---
+
+## Section Two — Pricing
+
+Submitted on Schedule C in the Excel workbook provided.
+
+**Rate structure: seasonal piecewise unit pricing.** Because our supply is
+regional and genuinely seasonal, a single annual unit price would require
+us to carry the winter cost of out-of-region sourcing across the whole
+year. Instead we price produce in three seasonal bands. Non-produce
+categories — grocery, dairy, protein — are priced flat.
+
+| Band | Months | Produce index | Basis |
+|---|---|---|---|
+| Peak regional | June – October | 0.88 × base | in-region supply at volume |
+| Shoulder | April – May, November | 1.00 × base | mixed regional and contracted |
+| Out-of-region | December – March | 1.19 × base | sourced outside foodshed |
+
+Base delivered produce case price, mixed: $31.20. Grocery, dairy and
+protein are quoted flat on Schedule C.
+
+Applying the band weighting across the 180-day school calendar — which
+falls disproportionately in the shoulder and out-of-region bands — our
+**base year total bid cost is $624,315.**
+
+We recognise this is materially above the likely low bid, and roughly six
+percent above what we would guess the middle of this field looks like. We
+believe the local content justifies it against the Geographic Preference
+criterion and against the Healthy Schools Act local provisions, and we
+would rather present an honest seasonal structure than a flat price that
+conceals the same economics.
+
+Prices firm for the base year within the stated bands.
+
+---
+
+## Section Three — Method of Approach and Implementation Plan
+
+### Food and packaging
+
+Produce is packed to USDA No. 1. Because we aggregate from multiple farms,
+pack configuration varies more than a broadline distributor's would, and we
+would agree standard configurations with the SFA during onboarding rather
+than assume them. Every case is labelled with the originating farm.
+
+Quality assurance is farm-level: each member farm carries GAP certification
+and we audit annually. Any item rejected at receipt is credited on the
+delivery ticket.
+
+CN labels and formulation statements are held for all processed and grocery
+items and are provided through our shared drive per account. Whole produce
+does not carry CN labels; for those items we supply the crediting
+documentation the meal pattern requires.
+
+### Utilization of USDA Foods
+
+This is our weakest area and we will not overstate it. We are not currently
+an approved USDA Foods processor. We would work alongside a processor
+designated by the SFA, or support the SFA in managing entitlement directly,
+but we cannot manage drawdown and diversion in-house today.
+
+### Geographic preference
+
+**Sixty-one percent (61%)** of the product value we propose to supply will
+be locally grown or raised within 250 miles of Washington, DC, measured
+across the full contract year. In the peak regional band that figure
+exceeds eighty percent. Certification of the percentage is enclosed under
+B.2 and we accept the SFA's audit right.
+
+All thirty-four member farms are within the Chesapeake foodshed; nineteen
+are in Maryland, nine in Virginia, four in Delaware and two within the
+District itself.
+
+### Healthy Schools Act
+
+We supply four DC charter SFAs under HSA requirements today and our
+certification of local percentage is designed to support the SFA's local
+sourcing subsidy claim directly.
+
+---
+
+## Section Four — Bidder's Experience, Expertise and Reliability
+
+**Knowledge of USDA and District requirements.** Our operations lead spent
+six years in DC OSSE child nutrition administration. We are fluent in the
+HSA and in the meal pattern; we are less fluent in USDA Foods entitlement
+mechanics, as stated above.
+
+**Dependability.** On-time delivery for SY2020–21 was 96.1% against
+contracted windows, and order fill accuracy 97.4% by line. Both are below
+what a broadline distributor will quote. The gap is almost entirely
+weather-driven crop shortfall in the peak band, where we substitute within
+category rather than fail the line.
+
+**Warehouse and facilities.** Our aggregation facility on Martin Luther
+King Jr Avenue is DC Department of Health certified. Two most recent
+inspections enclosed, both passed. Pest management is contracted monthly
+with a licensed applicator and audited semi-annually.
+
+**Customer service.** Named account lead, orders by phone, email or shared
+order sheet until 3:00 PM for next-day. The managing director is reachable
+directly and is on the escalation path for every account.
+
+**Proven organizational capacity.** Seven years in operation, eleven
+institutional accounts, thirty-four member farms. Our largest current
+account is three sites. **Friendship's eight sites would be the largest
+network we have served**, and we would staff a dedicated route and a
+second driver for it, funded within the pricing above.
+
+**Response to values statement (C.1).** Friendship's values statement
+speaks to educational outcomes and to the community the school sits in. We
+are based in Ward 8, we employ from Ward 8, and two of our member farms are
+inside the District. When Friendship spends with us, a measurable share of
+that spend stays within the same community the students come from. That is
+the whole reason the Collective exists, and it is why we are bidding
+despite being the highest price on the table.
+
+**References.** Three DC institutional accounts, provided in the
+questionnaire.
+
+---
+
+## Exceptions and Qualifications
+
+We take the following three exceptions to the solicitation as issued.
+
+**Exception 1 — D.1 Delivery Requirements, delivery windows.**
+Schedule A specifies delivery windows at several sites beginning at 5:30
+AM. Our aggregation model consolidates farm deliveries overnight and we
+cannot reliably load before 5:00 AM. We request windows beginning no
+earlier than 6:30 AM at all sites.
+*Price effect if not granted: +$18,400 (second overnight shift).*
+
+**Exception 2 — B.5, price firmness across the full term.**
+We request that the out-of-region band (December–March) be subject to
+renegotiation if the published PPI for fresh vegetables moves more than
+twelve percent between award and 1 December. Our regional supply cannot
+absorb that movement the way a national distributor's can.
+*Price effect if not granted: +$9,750 (risk premium carried in base).*
+
+**Exception 3 — C.3 Specifications, pack configuration.**
+We request that pack configuration be agreed jointly during onboarding
+rather than fixed at award, for produce categories only. Aggregated supply
+cannot guarantee a single fixed pack across thirty-four farms.
+*Price effect if not granted: we would be unable to bid produce categories.*
+
+Total price effect of exceptions 1 and 2 if declined: **+$28,150**, giving
+an adjusted base year total bid cost of **$652,465**.

corpus/friendship-pcs/responses/source/chesapeake-food-service.md

@@ -0,0 +1,118 @@
+# Chesapeake Food Service, Inc.
+## Proposal to Friendship Public Charter School — Food Items, 2021–2022
+
+1120 Ridgely Street, Baltimore, MD 21230
+Marcus Bell, Vice President — (410) 555-0188
+
+---
+
+### Executive Summary
+
+Chesapeake Food Service is a family-owned broadline distributor operating
+out of Baltimore since 1978. We serve roughly two hundred accounts across
+Maryland and the District, of which about thirty are schools, and we are
+pleased to offer Friendship Public Charter School the most competitive
+delivered pricing in this market.
+
+Our proposition is straightforward. We buy well, we run lean, and we pass
+that through. Where other distributors in this bid will layer on portal
+technology and account management structures that ultimately appear in the
+case price, we have chosen to compete on the number that matters. Over an
+eight-site network across a full school year, the difference is
+substantial, and it is money that returns directly to the meal programme.
+
+Our business license and certificate of occupancy are enclosed, along with
+two years of audited financial statements prepared by Hanlon & Reeve LLP.
+The debarment, price determination and lobbying certifications are signed
+and enclosed, as are the equal opportunity and clean air and water
+certifications. Insurance is carried at two million per occurrence and four
+million aggregate and a certificate naming Friendship Public Charter School
+as additional insured is enclosed.
+
+We are committed to student nutrition and to the communities we serve, and
+we believe strongly that a school food programme succeeds or fails on
+consistency of supply rather than on marketing. That is the value we bring.
+
+### Pricing
+
+Our pricing is submitted separately on the Excel schedule provided.
+
+We price at a flat delivered unit cost per case with no volume tiers and no
+rebate mechanism, because we have found that banded pricing chiefly serves
+to make comparison difficult and to defer benefit to year end. Our number
+is our number from day one.
+
+Delivered case pricing is applied as quoted plus a per-stop delivery charge
+which varies with the frequency requested. At two deliveries per week per
+site, the charge is $34.00 per stop. At three per week it falls to $28.50
+per stop, and at four or more it falls to $24.00 per stop. Sites may elect
+different frequencies and may change frequency with two weeks' notice.
+
+At the estimated volume stated in the solicitation and assuming three
+deliveries weekly to each of the eight sites across a one hundred and
+eighty day calendar, our base year total bid cost is five hundred and
+forty-one thousand, two hundred and eighty dollars ($541,280).
+
+Prices are held firm through the base year. We would ask only for relief
+under the economic price adjustment provision in the event of a commodity
+movement exceeding eight percent, on the same published index basis
+contemplated in the solicitation.
+
+### Method of Approach and Implementation
+
+We would begin with a site survey of all eight locations in the two weeks
+following award, walking each receiving area with the site's authorised
+designee to confirm the delivery window, the receiving point and the
+storage capacity. Our experience is that most transition problems are
+receiving problems rather than supply problems, and they are best solved
+before the first delivery rather than after.
+
+Product is packed to USDA standards throughout. We have not historically
+found that schools require pack size changes from our standard
+configurations, but we would accommodate reasonable requests where our
+suppliers can support them.
+
+On nutritional documentation, our category managers hold CN labels and
+formulation statements for the school product range and provide these on
+request. We can supply these for any item in the proposed catalogue,
+typically within two business days of a request.
+
+We participate in the USDA Foods programme in Maryland and would work with
+the SFA to make appropriate use of entitlement, though we would note that
+our processing relationships are stronger in the protein categories than
+in fruit and vegetable. We think it right to be plain about that rather
+than to overstate it.
+
+As to local sourcing, Chesapeake buys from the Maryland and Delmarva
+growing region in season and has done so throughout its history. We are
+proud of those relationships. We would expect a meaningful proportion of
+produce delivered between June and October to originate within the region.
+
+We maintain a pest management programme at our Baltimore facility under
+contract with a licensed applicator, serviced monthly.
+
+### Bidder's Experience, Expertise and Reliability
+
+Forty-three years in continuous operation under the same family ownership
+is, we would suggest, its own evidence of dependability. We have never
+failed to complete work awarded to us and we have never been terminated for
+cause.
+
+We deliver on time. Our internal measurement for the last school year was
+in the high nineties by percentage, and we are comfortable being held to
+that standard contractually.
+
+Our staff know the USDA meal pattern requirements and the District's
+Healthy Schools Act obligations, and several of our account team have
+worked with DC schools for more than a decade.
+
+We would provide a single point of contact for the network with escalation
+directly to the undersigned. We do not operate an ordering portal; orders
+are placed by telephone or email to a named person, which our customers
+tell us they prefer.
+
+Three references are provided in the questionnaire, all Maryland school
+accounts.
+
+We appreciate the opportunity and would welcome the chance to discuss any
+element of this proposal with the committee.

corpus/friendship-pcs/responses/source/potomac-provisions.md

@@ -0,0 +1,170 @@
+# POTOMAC PROVISIONS LLC
+### Response to Friendship Public Charter School
+### RFP for the Supply and Delivery of Food Items, SY 2021–2022
+
+8600 Ardwick-Ardmore Road, Landover, MD 20785 · (301) 555-0142
+Contact: Denise Whitaker, Director of Education Accounts
+
+---
+
+## SECTION ONE — EXECUTIVE SUMMARY
+
+Potomac Provisions has distributed to School Food Authorities in the
+Washington metropolitan area since 1994. We currently serve 41 SFAs across
+DC, Maryland and Northern Virginia, including 11 public charter networks,
+and deliver approximately 2.3 million cases annually from a single
+GFSI-certified warehouse in Landover.
+
+### Compliance Matrix
+
+Per Section A.2, every required item is enumerated below with the page of
+this response on which it appears.
+
+| RFP Ref | Requirement | Status | Page |
+|---|---|---|---|
+| A.1 | Cover Page | Complete, signed | 1 |
+| A.2 | Bidder Checklist | Complete | 2 |
+| B.2 | Certification of percentage of local foods | Complete — 18% certified | 3 |
+| B.6(c) | Two bid copies | Provided | — |
+| B.6(d) | Current state or local health certificate | Attached, Prince George's County, exp. 2022-03-31 | A-1 |
+| B.7 | Four-section format | This document | — |
+| B.8 | Distributor Pre-Qualification Questionnaire | Complete | 4 |
+| B.8 | Business license | Attached, MD SDAT D14882910 | A-2 |
+| B.8 | Certificate of Occupancy | Attached | A-3 |
+| B.8 | Two years audited financial statements | Attached, FY2019 & FY2020 | A-4 |
+| C.1 | Response to values statement | Section Four | 7 |
+| C.5 | Two most recent health inspections | Attached, 2020-11-04 and 2021-02-17, both passed | A-5 |
+| D.6 | Insurance amounts | Certificate attached, $2M/$4M | A-6 |
+| Schedule C | Pricing Sheet | Submitted in Excel as instructed | — |
+| Att. A | Healthy Schools Act requirements | Acknowledged, Section Three | 5 |
+| Att. B | Debarment & Suspension | Signed | A-7 |
+| Att. C | Independent Price Determination | Signed | A-8 |
+| Att. D | Certification Regarding Lobbying | Signed | A-9 |
+| E.1 | Equal Opportunity | Signed | A-10 |
+| E.3 | Clean Air and Water Certification | Signed | A-11 |
+
+No exceptions are taken to any term or condition of this solicitation.
+
+---
+
+## SECTION TWO — PRICING
+
+Pricing is submitted on Schedule C in the Excel workbook provided, as
+instructed. The structure is summarised here for the evaluation committee.
+
+**Rate structure: volume-banded unit pricing.** Unit price per case falls as
+aggregate annual volume across all eight sites rises. Bands are measured on
+total cases invoiced in the contract year and applied retroactively at
+year end as a rebate.
+
+| Annual case volume | Discount from list | Illustrative delivered case price, mixed produce |
+|---|---|---|
+| 0 – 11,999 cases | list | $28.40 |
+| 12,000 – 23,999 cases | 3.0% | $27.55 |
+| 24,000 – 35,999 cases | 5.5% | $26.84 |
+| 36,000+ cases | 7.5% | $26.27 |
+
+Delivered price includes freight to all eight sites within the delivery
+windows in Schedule A. There is no separate fuel surcharge and no minimum
+order charge.
+
+**Base year total bid cost, at FPCS's stated estimated volume of 21,400
+cases: $589,970.**
+
+Prices are firm for the base year. Economic price adjustment is requested
+only as permitted under D.8, on the published PPI for the relevant
+commodity group, and only at contract anniversary.
+
+---
+
+## SECTION THREE — METHOD OF APPROACH AND IMPLEMENTATION PLAN
+
+### Food and packaging
+
+All produce is packed to USDA No. 1 or better. Case configurations follow
+the SFA's existing pack sizes so that no menu re-costing is required at
+transition. Product acceptance issues are credited on the delivery ticket
+at the point of receipt; the driver is authorised to credit without a
+return authorisation.
+
+CN labels and product formulation statements are supplied through our
+online portal, which exposes a per-item document library. Every catalogue
+item carries its CN label, nutrient analysis and allergen statement, and
+these are downloadable in bulk as a single PDF per menu cycle. This is how
+we make nutritional information available to the SFA as required in B.7.
+
+### Utilization of USDA Foods
+
+We are an approved processor-distributor for USDA Foods in both Maryland
+and the District. We manage entitlement drawdown, diversion and pass-through
+value directly, and provide a monthly entitlement position statement.
+For SY2020–21 we processed 340,000 lbs of USDA-donated commodity on behalf
+of DC-area SFAs.
+
+### Geographic preference
+
+Eighteen percent (18%) of the product value we propose to supply to FPCS
+will be locally grown or raised, defined as originating within 250 miles
+of Washington, DC. Certification of this percentage is provided under B.2.
+We accept the SFA's right to audit the actual percentage once awarded.
+
+We are candid that 18% is a function of our scale and our year-round
+service commitment: we will not substitute a local item where continuity
+of supply cannot be guaranteed across the full school year.
+
+### Healthy Schools Act
+
+We have supplied DC SFAs under HSA requirements since 2010 and are familiar
+with the local meal reimbursement conditions in Attachment A, including the
+whole-grain-rich and local-sourcing provisions.
+
+---
+
+## SECTION FOUR — BIDDER'S EXPERIENCE, EXPERTISE AND RELIABILITY
+
+### Knowledge of USDA and District requirements
+
+Our education accounts team includes two staff who previously worked in
+SFA operations. We complete DC OSSE reporting alongside our SFA customers
+each year.
+
+### Dependability
+
+Our on-time delivery rate across all SFA accounts for SY2020–21 was 98.6%,
+measured against contracted delivery windows. Order fill accuracy was
+99.2% by line. Both figures are drawn from our WMS and can be audited.
+
+### Warehouse and facilities
+
+Our Landover facility is GFSI-certified under SQF Level 2. The two most
+recent health inspections, both passed with no critical violations, are
+attached under C.5. Our stored products pest management programme is
+operated under contract by a licensed applicator with monthly service and
+quarterly third-party audit, per C.6.
+
+### Customer service
+
+Each SFA has a named account manager and a named backup. Orders may be
+placed through the portal or by phone until 2:00 PM for next-day delivery.
+Credits are issued within one business day.
+
+### Proven organizational capacity
+
+Twenty-seven years in operation. 2.3 million cases annually. We have run
+eight-site or larger charter networks continuously since 2011, and our
+audited financials for FY2019 and FY2020 are attached.
+
+### Response to values statement (C.1)
+
+FPCS's stated commitment to student nutrition as a driver of educational
+outcomes matches how we run our education accounts. We staff them
+separately from our commercial business precisely because the buying
+calendar, the compliance burden and the tolerance for substitution are
+different. We are interested in this business because eight sites under one
+authority is the scale at which menu consistency actually becomes
+achievable.
+
+### References
+
+Three SFA references are provided in the Pre-Qualification Questionnaire,
+all DC or Prince George's County charter networks of comparable size.