One operator. ~450 hours. 133,762 lines of code.
AI-compressed development, honestly accounted: ~$135Kโ$220K in operator time versus a $4.6M COCOMO equivalent โ a 21โ34x compression ratio. Every number on this page traces to a command you can run yourself.
Measured June 2026 using scc v3.7.0. Three separate repos. No rounding in a flattering direction.
The Honest Accounting
The all-in honest number: Operator time at a senior architect rate ($300โ490/hr x ~450 hours) costs $135,000โ$220,500. The COCOMO-estimated cost for a conventional team writing the same 133,762 lines from scratch: $4,615,775. That gives a compression ratio of 21โ34x โ and that's the number we lead with, because it's the honest one.
Labor compression: COCOMO estimates ~410 person-months (24.59 months x 16.67 engineers) for a conventional team. The actual build: roughly 1 person x ~3 months of active work (131 active commit days, ~450 operator hours). The 410-to-1 compression in labor units is wage-independent โ it holds regardless of what you pay engineers.
Hard cash: ~$0 metered build cost. The flat Claude Code Max subscription (~$100/mo) is excluded the same way a tool subscription is excluded on comparable receipts pages โ it's overhead, not a per-project charge. This number is real, but it ignores operator time. We call it out separately and label it 'real but unfair.'
COCOMO Detail โ Two Scenarios
The Numbers That Survive Any Wage Debate
Regardless of wage assumption, two COCOMO outputs are identical: ~25 months of estimated schedule and ~17 engineers of estimated team size. That is ~410 person-months of conventional-team effort โ compared to 1 person x ~450 hours. The compression in labor units is wage-independent and holds under any costing model.
What Got Built
OSS Framework
17 packages (16 published). Rendering engine, CLI, MCP server, theme system, SBOM generator, MapLibre integration, icon registry, build pipeline, Zod-validated schemas.
Pro Framework
19 packages (18 published). OpenAPI integration, CAC/PIV + OIDC auth, 4-layer compliance engine, Pulse live data, workflow engine, Cesium 3D globe, deck.gl.
Services Tier
9 packages (8 published). Backend compiler, capability registry, Hono runtime, dual-target build (Lambda + Helm), typed predicate schema, closed 10-operator set.
Compliance Engine
NIST 800-53, CMMC L2 (110 practices), NIST 800-171r3 (130 controls), FedRAMP (103 annual controls), NIST SSDF. OSCAL v1.1.2 export for FedRAMP ATO packages.
Security Architecture
MCP structural confinement (26+ tools, no shell/write-arbitrary). SHA-256 otter integrity with constant-time comparison. safe_write chokepoint with path traversal rejection and symlink guards.
Production Output
2 live sites (peraspera.llc, trystackwright.dev). 5,671 tests across 287 test files. 179 Markdown docs (64,877 lines). 1,501 commits across 3 repos over ~10.8 months.
Our Receipts โ How We Measured
Every metric on this page was produced by a reproducible command. Measurement date: June 2026. The commands below assume you have cloned the three repos (oss/, pro/, services/) and installed scc v3.7.0.
Security Posture
Structural Confinement
MCP tool surface is the security boundary. No shell access, no write-arbitrary. 26+ registered tools โ exhaustively enumerable. Agents can only do what the tool list permits.
Agent Integrity
SHA-256 checksums on all 9 otter definitions. Constant-time comparison via timingSafeEqual. Symlink rejection, binary validation (setuid/setgid via fstatSync, TOCTOU-resistant), O_EXCL atomic POSIX pipeline lock.
Compliance Engine
NIST 800-53, CMMC L2, FedRAMP, and NIST SSDF assessment engines. OSCAL v1.1.2 export implemented (exportAsOSCAL). 4-layer assessment framework. Aligned โ not certified.
Supply Chain
SBOM in SPDX 2.3, CycloneDX 1.5, and Build Manifest with Zod-validated schemas. CVE enrichment via OSV.dev (real HTTPS calls). Sigstore signing (real cosign; verification has a TODO). SLSA L3 provenance attestation schema implemented; hermetic runner is external.
Authentication
CAC/PIV: PKI header signing, revocation checking โ 3,617 lines in auth package. OIDC: discovery, PKCE, token exchange. RBAC and audit logging. Allowlist-only environment stripping via buildCodePuppyEnv().
Backend Safety
Typed predicate schema with closed 10-operator set. No eval, no regex, no expression strings. Least-privilege permission derivation. projectOnly: true mode. safe_write per-otter allowlists with foreman blocked.
Methods and Honesty
Hard cash vs. operator time. The ~$0 metered build cost is kept separate from imputed operator time ($135Kโ$220K). The flat Claude Code Max subscription (~$100/mo) is excluded the same way a tool subscription is excluded on comparable receipts pages โ it is overhead, not a per-project charge.
Operator hours. The 450-hour figure is a self-estimate, not instrumented. There are no session logs. It is bounded by 131 active commit days at ~3.4 hours/day. Git commit density provides a rough bound; the actual number could be lower.
COCOMO sensitivity. The model has two sensitive inputs: (1) the average wage assumption (scc default ~$56K/yr vs. our loaded $180K) and (2) the overhead multiplier (default 1.0 vs. our loaded 2.0). The reproducible-default figure ($4,615,775) is primary; the loaded figure ($12,302,174) is a labeled alternative.
What COCOMO measures. COCOMO (organic mode, Boehm 1981) estimates effort for a conventional team writing the same codebase from scratch. It does not distinguish hand-authored logic from generated config and schema files. The actual codebase includes both โ COCOMO counts all lines equally.
Compression ratio robustness. The 21โ34x compression holds even if you vary the operator's hourly rate within the senior architect band ($300โ490/hr), because both the numerator (COCOMO floor) and denominator (operator cost) move proportionally.
Sources
โข scc v3.7.0 โ github.com/boyter/scc โ COCOMO model (Boehm, 1981; organic mode)
โข NIST SP 800-53 Rev 5 โ Security and Privacy Controls for Information Systems and Organizations
โข CMMC Level 2 Assessment Guide v2.0 โ 110 practices
โข NIST SP 800-171 Rev 3 โ Protecting Controlled Unclassified Information (130 controls)
โข FedRAMP Annual Assessment Controls Selection Worksheet โ 103 annual controls
โข OSCAL v1.1.2 โ Open Security Controls Assessment Language (NIST)
โข NIST SP 800-218 โ Secure Software Development Framework (SSDF)
โข SLSA v1.0 specification โ slsa.dev
โข OSV.dev โ Open Source Vulnerability database
โข Sigstore โ sigstore.dev โ software signing and transparency