José Almeida
93 lines
4.4 KiB
Markdown
93 lines
4.4 KiB
Markdown
---
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status: draft
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system: executors
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specification_version: 1
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migration: in_progress
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owners:
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- kandev
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---
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# Executor system
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## Purpose
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The executor system owns the runtime environments that execute agent work,
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including local, container, and SSH execution boundaries.
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## Ownership
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This system owns executor profiles, environment construction, SSH lifecycle,
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runtime resource admission, process and port safety, agent process lifetime
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across a backend restart, and executor-specific failure and recovery contracts.
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## Exclusions
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- Agent identity and provider capabilities belong to the [agent
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system](../agents/README.md).
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- Task ownership of worktrees belongs to the [task system](../tasks/README.md).
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- Desktop process supervision belongs to the [desktop system](../desktop/README.md).
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## Specification map
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### Requirements
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- [Agent survival across a backend restart](requirements/agent-survival-across-restart.md)
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- [Survived session state and capability gating](requirements/agent-survival-session-state.md)
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- [Standalone control-server ownership](requirements/standalone-control-server-ownership.md)
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- [Standalone control-server single driver and unowned lifetime](requirements/standalone-control-server-single-driver.md)
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- [Executor-Profile Environment Precedence](requirements/executor-profile-env-precedence.md)
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- [Port collision and backend ownership safety](requirements/port-collision-safety.md)
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- [SSH Executor](requirements/ssh-executor.md)
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- [Remote SSH task-directory reclamation](requirements/remote-task-directory-reclamation.md)
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- [Kubernetes worker presets](requirements/kubernetes-worker-presets.md)
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- [Kubernetes startup timing](requirements/kubernetes-startup-timing.md)
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- [Kubernetes retained compute visibility](requirements/kubernetes-retained-compute.md)
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- [SSH Session Transport Liveness](requirements/ssh-transport-liveness.md)
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- [SSH Host Reachability](requirements/ssh-reachability.md)
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### System design
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- [Agent survival across a backend restart Part 1](system-design/agent-survival-across-restart-01.md)
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- [Agent survival across a backend restart Part 2](system-design/agent-survival-across-restart-02.md)
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- [Agent survival across a backend restart Part 3](system-design/agent-survival-across-restart-03.md)
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- [Executor-Profile Environment Precedence System Design Part 1](system-design/executor-profile-env-precedence-01.md)
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- [Executor-Profile Environment Precedence System Design Part 2](system-design/executor-profile-env-precedence-02.md)
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- [Executor-Profile Environment Precedence System Design Part 3](system-design/executor-profile-env-precedence-03.md)
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- [Executor-Profile Environment Precedence System Design Part 4](system-design/executor-profile-env-precedence-04.md)
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- [Executor-Profile Environment Precedence System Design Part 5](system-design/executor-profile-env-precedence-05.md)
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- [SSH Executor](system-design/ssh-executor.md)
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- [Remote SSH task-directory reclamation](system-design/remote-task-directory-reclamation.md)
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- [Kubernetes worker presets](system-design/kubernetes-worker-presets.md)
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- [Kubernetes startup timing](system-design/kubernetes-startup-timing.md)
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- [Kubernetes retained compute visibility](system-design/kubernetes-retained-compute.md)
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- [SSH Session Transport Liveness](system-design/ssh-transport-liveness.md)
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- [SSH Host Reachability](system-design/ssh-reachability.md)
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- [SSH Host Reachability Surfaces](system-design/ssh-reachability-surfaces.md)
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## Migration record
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Migration remains in progress while legacy source detail is extracted from the
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canonical requirement and system-design documents. Use the catalog command to
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find current sources.
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The [Kubernetes executor foundation](../kubernetes-executor/spec.md) remains
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the shipped lifecycle contract. Kubernetes capability pairs extend it. The
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[task-pod requirements](requirements/kubernetes-task-pod.md) and
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[design](system-design/kubernetes-task-pod.md) define task-owned compute and
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replace session ownership. Other foundation
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security, admission, and recovery guarantees remain applicable.
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## Related systems
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- [Agents](../agents/README.md): supplies the agent command and profile.
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- [Tasks](../tasks/README.md): owns task-scoped execution lifecycle.
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The compact task indicator contract is extracted into
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[requirements](requirements/task-status-indicators.md) and
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[design](system-design/task-status-indicators.md), including automatic freshness
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and desktop/touch disclosure. The foundation retains task-page controls.
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