neuron-tai/.scratch/distributed-gguf-runtime/issues/018-define-canonical-ralph-and-gitea-metadata-schema.md

DGR-018: Define canonical Ralph and Gitea metadata schema

• Status / triage: completed; passes: true
• Execution mode: AFK
• Milestone: M0
• Dependencies: DGR-017
• Blocks (derived): DGR-021, DGR-025
• Labels: area:planning, area:gitea, type:infrastructure, priority:p0, ready-for-agent
• Evidence class: model-free
• Hardware: none
• Model: generic
• Upstream: no

Objective / description

Fresh Ralph session: read .scratch/distributed-gguf-runtime/RALPH-CONTEXT.md, source issue .scratch/distributed-gguf-runtime/issues/018-define-canonical-ralph-and-gitea-metadata-schema.md, and evidence READMEs for dependencies (DGR-017) before changing code. Inspect live source/tests rather than trusting legacy pass states. Objective: Make prd.json the validated source from which Markdown and Gitea issues can later be generated losslessly.

Acceptance criteria

• Define fields for stable ID/title, labels, milestone, type, dependsOn, derived blocks, triage, evidence class, and hardware/model/upstream flags.
• Validate that all stories start passes: false, use known dependencies, and have unique stable IDs.
• Reject cycles, missing dependencies, mismatched generated blocks, duplicate titles/IDs, and generated artifacts claiming authority over prd.json.
• Add deterministic model-free tests for parse, validation, and generation round trips.
• Applicable shared quality gates in prd.json pass, and the evidence handoff records exact commands/results, changed files, limitations, and dependency handoff.

Shared quality gates

• Targeted deterministic tests pass; Python changes also pass python -m compileall packages tests.
• git diff --check passes.
• Default tests are model-download-free, API-credit-free, and GPU-free.
• Evidence README records exact changed files, commands/results, limitations, and dependency handoff; no fabricated evidence or inherited completion credit.
• Native changes pass focused out-of-tree CMake build and CTest; patch changes verify clean apply/check/reverse against the exact llama.cpp pin.
• Runs are opt-in and record exact artifact/split hashes, runtime/upstream pin, backend/driver, hardware, network, commands, and raw metrics. Model artifacts use configured mounted-drive storage and never /home.
• Preserve existing Transformers behavior and backend-agnostic Tracker routing/load balancing/billing/relay semantics unless an explicit versioned contract says otherwise. One scoped story commit is expected during execution, but this specification-materialization change is not committed.

Evidence handoff

Verified evidence: .scratch/distributed-gguf-runtime/evidence/DGR-018/README.md. Legacy evidence remains provenance only and grants no implementation completion credit.