# Session Log

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## 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

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## 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