Closes #25 + #26 in one PR (the README references docs/* paths and TASKS.md references everything else; landing them separately would mean a half-broken docs tree in between). docs/* (all written for the template, not Teller-flavoured): - HARNESS.md — umbrella table mapping every layer to its config file and to the meta-gate(s) that catch drift in it. - INVARIANTS.md — five portable rules with numbered slots 6+ for project additions. - BOUNDARIES.md — ASCII layer diagram + the import-linter contract spec + how to add a layer cleanly. - DEVELOPMENT.md — prereqs, first-time setup, dev stack, justfile recipes table, branching diagram, commit-prefix table, CI workflow inventory, agent-hook setup, branch-protection token setup. - EVAL_HARNESS.md — runner architecture, three tolerance modes, wiring your agent / LLM client, adding a case, opt-in for nightly schedule. - SECURITY.md — threat model table + defence-in-depth ASCII map + container hardening notes + explicit out-of-scope list (auth, WAF, rate-limit, secret manager). - ARCHITECTURE.md — scaffold component diagram, request lifecycle, frontend lifecycle, slots that fill in as the project grows. Top-level docs: - README.md — what ships / quickstart / why-a-harness / docs index / versions table / license. - CONTRIBUTING.md — branching diagram, commit-prefix table, PR template callouts, "adding a check" recipe. - CLAUDE.md — agent project instructions: read-first list, workflow, code conventions, what-not-to-do, skills inventory. - CHANGELOG.md — release-drafter seed; first Unreleased entry summarises the harness extraction. - docs/TASKS.md — full ticket table with phase grouping + status emoji, matches the GitHub Project board. Closes #25 Closes #26 Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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