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zlh-grind/SESSION_LOG.md

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Session Log

2026-03-10

  • Closed: Upload transport timeout tuning — upload route now logs explicit error categories distinguishing client abort, upstream timeout, and socket reset.
  • Research: Investigated external agent standards applicable to zlh-agent. No formal standard maps cleanly — agent is purpose-built (embedded process manager + filesystem authority inside LXC, internal-only caller). Key findings: health probe split (/healthz liveness vs /readyz readiness) is a common convention but not required given single-caller architecture; graceful shutdown (SIGINT/SIGTERM, 10s timeout) is correct; structured lifecycle logging already solid; Go 1.21 slog exists if log unification is ever wanted. No open threads opened from this — no gaps requiring action.
  • Grind repo updated to reflect current platform state:
    • README.md — added Current Platform Capabilities section (March 2026)
    • Agent_Endpoint_Specifications_Phase1.md — created; full route reference including updated /status crash metadata fields
    • Session_Summaries/2026-03-01_Upload-Pipeline-Filesystem-Consolidation.md — created; includes upload transport fix (502 root cause + resolution)
    • Frontend/TerminalView_Component.md — created; includes reconnect behavior (1–5s backoff, no page refresh required)
    • ZeroLagHub_Quick_Status_Feb2026.md — created; reflects March 2026 operational state
    • Session_Summaries/2026-03-10_Agent_Observability_Update.md — created; structured logging, crash metadata fields, ReadinessTimeout constant, crash semantics unchanged

2026-03-14

Goal: Stabilize dev container provisioning across agent, portal, and artifact server.

Scope:

  • catalog-driven runtime installs
  • dotnet runtime support
  • dev workspace environment
  • portal provisioning updates

Explicit non-goals:

  • platform architecture changes
  • container orchestration changes

Canonical refs used:

  • ZeroLagHub knowledge base
  • dev runtime provisioning spec

Work completed:

Agent:

  • switched dev runtime validation to artifact catalog
  • runtime installs moved to /opt/zlh/runtimes
  • implemented runtime install guards
  • implemented dev user environment
  • updated dev shell to run as dev
  • added dotnet runtime provisioning
  • added optional code-server provisioning

Portal:

  • added dotnet runtime
  • added enable code-server option
  • enabled Files tab for dev containers
  • dev file uploads now current-directory based

API:

  • added enable_code_server field to dev provisioning payload

Artifact Server:

  • runtime artifacts verified
  • dotnet installer aligned with artifact fetch model

Issues discovered:

  • code-server artifact contains repository source
  • installer expects packaged release

Resolution: Artifact server must provide compiled code-server release archive.

Current system state:

  • dev runtime provisioning operational
  • dotnet runtime operational
  • portal provisioning operational
  • code-server blocked by artifact packaging