sand-boxer/workplans/SAND-WP-0002-meta-framework-foundation.md

id, type, title, domain, repo, status, owner, topic_slug, created, updated

id	type	title	domain	repo	status	owner	topic_slug	created	updated
SAND-WP-0002	workplan	Meta-framework foundation and first extension	infotech	sand-boxer	ready	codex	custodian	2026-06-22	2026-06-22

Meta-framework foundation and first extension

Establish sand-boxer as a meta-framework: unified API contract, profile catalog, extension platform, and the first self-hosted backend (ext.compose-ssh) migrated from the-custodian/e2e-framework/.

Charter: INTENT.md
Research: research/03-meta-framework-synthesis.md
Predecessor: SAND-WP-0001 (bootstrap; T02 dev workflow should complete in parallel or before T03 here)

Design meta-framework contracts

id: SAND-WP-0002-T01
status: todo
priority: high

Author docs/meta-framework.md (or specs/meta-framework.md) defining:

• Resource model: Profile, Extension, Host, Sandbox, Snapshot, Route, Meter
• Lifecycle states and State Hub event mapping
• Core API operations: create, get, list, extend_ttl, recreate, destroy (snapshot/restore deferred to SAND-WP-0003)
• Consumer attribution schema (adm / agt / atm, calling project id)
• Extension interface: provision, wait_ready, teardown, optional estimate_cost
• Routing policy vocabulary (prefer-self-hosted, lowest-cost, explicit)
• Security limits statement (blast-radius vs intent — per research)

Derive from research/03-meta-framework-synthesis.md; do not duplicate harness, validator, or codegen concerns.

Define profile and extension schemas

id: SAND-WP-0002-T02
status: todo
priority: high

Add machine-readable schemas (JSON Schema or Python pydantic models) for:

• Profile — extension binding, isolation, network, workspace mode, scope, TTL, resources, setup metadata, placement, reachability, cost class
• Extension — id, capabilities, isolation levels, pricing model, regions
• SandboxCreateRequest / SandboxStatus response shapes

Ship profiles/profile.compose-e2e.yaml as the reference profile (successor to e2e/e2e.yml inputs; validation semantics stay with wise-validator).

Register extension stub extensions/ext.compose-ssh.yaml with capability metadata.

Scaffold package and developer workflow

id: SAND-WP-0002-T03
status: todo
priority: high

Create Python package layout (aligned with e2e-framework lineage):

src/sandboxer/     # or sandboxer/ at repo root — pick one, document in AGENTS.md
  api/
  profiles/
  extensions/
  lifecycle/
tests/
pyproject.toml

Document in AGENTS.md: install (uv sync or equivalent), test, lint, format, and CLI entry point. Satisfies SAND-WP-0001-T02 if not already done.

Implement extension registry and loader

id: SAND-WP-0002-T04
status: todo
priority: high

Implement extension discovery and registration:

• Load extension definitions from extensions/
• Plugin entry-point or explicit registry for ext.compose-ssh
• Validate extension declares required capability fields before registration
• Unit tests for load failures and duplicate ids

No SaaS extensions in this workplan — self-hosted only.

Implement ext.compose-ssh (e2e-framework lineage)

id: SAND-WP-0002-T05
status: todo
priority: high

Extract and adapt provision/teardown from the-custodian/e2e-framework/:

• SSH to configured host; isolated directory per sandbox id
• Unique compose project name; compose up / compose down (idempotent)
• Default-deny network posture per profile (document host-side requirements)
• Host placement: read placement.prefer / fallback from profile
• Do not port test execution, health polling, or State Hub result reporting — those are wise-validator responsibilities

Provide a compatibility note in extension README for interim make e2e callers.

Implement API v0 and CLI

id: SAND-WP-0002-T06
status: todo
priority: high

Ship minimal establishment surface:

CLI (primary for v0):

sandbox create --profile profile.compose-e2e --input repo=/path/to/repo
sandbox get <id>
sandbox list
sandbox recreate <id>
sandbox destroy <id>

HTTP (optional in v0; stub acceptable if CLI calls core library directly):

• POST /v1/sandboxes, GET /v1/sandboxes/{id}, DELETE /v1/sandboxes/{id}

Core library must be harness-agnostic — glas-harness, wise-validator, and snuggle-inventor call the same functions.

State Hub lifecycle registration

id: SAND-WP-0002-T07
status: todo
priority: medium

On sandbox state transitions, emit State Hub progress events (or dedicated registration endpoint when available):

• requested, provisioning, ready, active, destroying, destroyed
• Include: sandbox_id, profile_id, extension_id, host, consumer, actor_type, timestamps

Extend the build-agent self-register pattern sketch for generic sandbox identities. Document contract in meta-framework spec.

Document sibling integration contracts

id: SAND-WP-0002-T08
status: todo
priority: medium

Add docs/integrations/ with one page per planned sibling:

Doc	Contents
glas-harness.md	Sandbox handle + reachability; harness owns exec
wise-validator.md	profile.compose-e2e; validator owns e2e.yml + health + tests
snuggle-inventor.md	Setup metadata + secret_refs; no codegen in sand-boxer

Each doc: example request, response fields, ownership table, out-of-scope list. Cross-link from INTENT.md Coulomb boundaries section.

Register capability and fix registry scaffold

id: SAND-WP-0002-T09
status: todo
priority: medium

• Author registry/capabilities/execution.sandbox-provision.md
• Add row to registry/indexes/capabilities.yaml (domain: infotech)
• Run reuse-surface validate when CLI available
• Notify operator: make fix-consistency REPO=sand-boxer from ~/state-hub

Verification and migration smoke test

id: SAND-WP-0002-T10
status: todo
priority: medium

End-to-end proof on CoulombCore or sandboxer01 (when reachable):

1. sandbox create with profile.compose-e2e for a repo with e2e/ layout
2. Confirm ready state and reachability descriptor
3. Manual or scripted compose health check (not wise-validator — just proves environment exists)
4. sandbox destroy — confirm idempotent cleanup (no leftover compose projects or /tmp dirs)
5. Document runbook in docs/runbooks/profile-compose-e2e.md

Record gaps for wise-validator migration (SAND-WP-0003) and the-custodian shim (SAND-WP-0004).

---

Out of scope (follow-on workplans)

Item	Target workplan
wise-validator extraction + e2e test orchestration	SAND-WP-0003
the-custodian Makefile shim + deprecation timeline	SAND-WP-0004
ext.vm-packer (build-machines)	SAND-WP-0005
SaaS extensions + payments layer	SAND-WP-0006
Snapshot / restore / checkpoint profiles	SAND-WP-0007
Coulomb-native runtime (phase 5)	Backlog

Completion criteria

• Meta-framework spec and schemas merged
• ext.compose-ssh provisions and tears down a compose sandbox via CLI
• State Hub receives lifecycle events for at least one full create→destroy cycle
• Sibling integration docs published
• capability.execution.sandbox-provision registered and validated
• All tasks done; workplan status: finished; operator runs fix-consistency