CI Cost & Safety Guardrails

[aryeko]

Epic

• Benchmark Validity & Reproducibility Hardening #1

Goal

Make benchmark CI runs safe, bounded, and cost-aware.

Scope

In:

• Concurrency controls and cancel-in-progress behavior
• Runtime budget/timeouts/artifact retention policy
• Manual workflow inputs to constrain run scope

Out:

• Benchmark application implementation

Success Metrics

• CI cannot run unbounded or overlapping expensive benchmark jobs

Relation Contract

Parent: #1
Blocks: reliable long-term scheduled benchmark operations
Blocked by: #3, #4, #5
Implements in repo: go-modkit/benchmarks
Verification source: workflow runs and policy checks

Tasks

• Add workflow concurrency and cancellation controls #20 Add workflow concurrency and cancellation controls
• Add benchmark CI budget, timeout, and retention policy #21 Add benchmark CI budget, timeout, and retention policy
• Add bounded manual workflow inputs for benchmark scope #22 Add bounded manual workflow inputs for benchmark scope

[aryeko]

Baseline groundwork from PR #27 is now in place (CI, docs, parity-gated scripts, reporting, Codecov). Remaining scope here is focused on workflow guardrails: concurrency, budgets/timeouts/retention, and bounded manual inputs.