feat: agent.yaml parser, payload renderer, and go.work workspace#46
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Phase 2 foundation: adds the agent config package that replaces profile.toml with a declarative YAML format. The payload renderer generates self-contained payload directories (env.sh, run.sh, bin/, task.md) uploaded to sandboxes. New: - internal/agent: AgentConfig struct, Parse/ParseFile, BuildEnvSh, BuildRunSh, RenderPayload with path traversal protection on include: paths - go.work: Go workspace linking root module and sandbox/launcher module, enabling the launcher to import internal/ packages in follow-up PRs - 18 tests covering parser validation, env generation, run.sh template, payload rendering, and security edge cases Also: - providers.toml: change gws type from custom to openshell (matches reality after GWS native provider in PR 44)
This was referenced Jun 8, 2026
The launcher will be replaced by the harness binary in a container image, eliminating the need for a Go workspace. The separate sandbox/launcher module will be deleted when the harness gains in-cluster support.
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Summary
internal/agentpackage: AgentConfig struct with YAML parsing, BuildEnvSh/BuildRunSh generators, RenderPayload for self-contained payload directoriesgo.workGo workspace linking root module and sandbox/launcher, enabling the launcher to import internal/ packages in follow-up PRsContext
Phase 2 foundation for payload consolidation. This PR introduces the agent config format that replaces profile.toml with declarative YAML. Follow-up PRs will wire this into harness up/harness create, refactor the launcher, and migrate profiles/ to agents/.
Test plan