Sandbox Self-Test
Verify the entire toolkit against a disposable HubSpot developer test account or sandbox that you bring: seed synthetic fixtures, run every scripted skill's read path, exercise end-to-end and API round-trip cases, produce a graded report, and tear everything down. Hard-refuses to run against production.
Run this skill in Claude Code:
/plugin marketplace add tomgranot/hubspot-admin-skills
/plugin install hubspot-admin@hubspot-admin-skills
/sandbox-self-testSandbox Self-Test
Purpose
Every skill in this repo mutates or reads a live HubSpot portal, and no two portals are alike. This skill lets anyone — a contributor before opening a PR, an admin before trusting the toolkit with production, or the maintainer after a HubSpot API change — verify the whole toolkit against a disposable portal they bring themselves. HubSpot gives every account up to 10 free developer test accounts, so there is no shared test infrastructure to maintain and no credentials in the repo: bring your own sandbox, run the suite, read the report, throw the sandbox away.
Key Constraint
This suite seeds, mutates, and deletes data. It must never touch production. The lockout is enforced in code, not by convention:
- The suite reads its own env var,
HUBSPOT_SANDBOX_ACCESS_TOKEN— it never readsHUBSPOT_ACCESS_TOKEN, so a production token in your.envcannot be picked up by accident. - Every script (not just preflight) calls
GET /account-info/v3/detailsbefore acting and refuses unlessaccountTypeisDEVELOPER_TESTorSANDBOX. The check fails closed — any error verifying the account type is a refusal — and there is no override flag.
Prerequisites
- A developer test account (free: HubSpot Settings > Testing > Developer test accounts, up to 10 per account, 90-day expiry renewed by API activity) or a standard sandbox (Enterprise plans)
- A private app inside that test account with scopes:
crm.objects.contacts.read/write,crm.objects.companies.read/write,crm.objects.owners.read,crm.lists.read/write,automation - Its token in
.envasHUBSPOT_SANDBOX_ACCESS_TOKEN(keep it separate from your productionHUBSPOT_ACCESS_TOKEN) - Python 3.10+ with
uv
Scripts
| Stage | Script | Run with |
|---|---|---|
| Before | scripts/preflight.py | uv run skills/sandbox-self-test/scripts/preflight.py |
| Execute | scripts/seed.py | uv run skills/sandbox-self-test/scripts/seed.py |
| Execute | scripts/run_suite.py | uv run skills/sandbox-self-test/scripts/run_suite.py |
| After | scripts/teardown.py | uv run skills/sandbox-self-test/scripts/teardown.py |
preflight.py gates on account type and probes scopes. seed.py creates the fixture matrix (idempotent). run_suite.py runs the cases and writes the report (--list prints the plan without any API call). teardown.py deletes everything marker-matched, with typed confirmation.
Execution Pattern
Stage 1: Plan
Confirm with the user:
- Which portal. They must name the developer test account / sandbox being used. If they only have a production token, stop and walk them through creating a test account first — do not improvise.
- What is in it. The suite tolerates other data in the sandbox (all assertions are marker-scoped), but a sandbox that mirrors production data deserves a warning:
delete-no-email-contactsruns for real and will delete all no-email contacts in the portal, not just fixtures. An empty or purpose-made sandbox is the recommendation. - Whether to tear down at the end (default: yes).
Stage 2: Before
Run preflight. It must print GO — portal ID, account type, and all scope probes OK. A REFUSED here is the safety system working; never work around it.
Stage 3: Execute
Seed, then run the suite:
seed.pycreates 3 companies and 9 contacts, one defect per testable skill (no email, no owner, no lifecycle stage, messy geo spellings, duplicate company domains, missing company name with an association to copy from, an enrichable contact for the mock provider).run_suite.pyruns three kinds of cases:- before-smoke — every scripted skill’s
before.pyruns as a subprocess with the sandbox token standing in forHUBSPOT_ACCESS_TOKEN; read-only, asserts clean exit. This is the widest net: it catches endpoint drift, scope gaps, and pagination breakage across the whole toolkit. - end-to-end —
delete-no-email-contacts(full destructive cycle with piped confirmation, verified against the Search API),waterfall-enrich-contactswith the mock provider (no credits spent, write-back verified),workflows-as-codeexport (JSON on disk verified). - api-roundtrip — a dynamic list and a v4 workflow are each created (
[SELFTEST]-prefixed, workflow disabled with a never-matching enrollment filter), fetched, verified, and deleted.
- before-smoke — every scripted skill’s
All fixtures are triple-marked: reserved-TLD emails (@selftest.hubspot-admin-skills.invalid — can never receive mail), SELFTEST name prefixes, [SELFTEST] list/workflow prefixes.
Stage 4: After
Read reports/selftest-{date}.md with the user: PASS/FAIL/SKIP per case. Investigate any FAIL before using the failing skill on production — a failure here is either a fixture problem, a scope problem, or a real regression against HubSpot’s current API behavior, and telling those apart is the whole point of the suite. Then run teardown.
Safety Mechanisms
| Mechanism | Detail |
|---|---|
| Production lockout | Account-type gate (DEVELOPER_TEST/SANDBOX only) enforced independently in preflight, seed, suite, and teardown. Fails closed, no override. |
| Separate token variable | HUBSPOT_SANDBOX_ACCESS_TOKEN only — a production token in HUBSPOT_ACCESS_TOKEN is invisible to this suite. |
| Marker-scoped teardown | Deletion matches selftest markers (reserved-TLD email domain, SELFTEST/[SELFTEST] prefixes) — never “everything in the portal”. |
| CSV audit trail | Teardown exports every object it will delete to data/audit-logs/ before deleting, and requires typed TEARDOWN confirmation. |
| No credits spent | The enrichment case forces ENRICHMENT_PROVIDER=mock (deterministic fake data, no network). |
| Skips are visible | Anything a sandbox can’t simulate is reported SKIP with the reason — the report never overstates coverage. |
Technical Gotchas
- A sandbox cannot simulate everything. Bounce state (
hs_email_hard_bounce_reason_enum), global unsubscribes (hs_email_optout), marketing status (hs_marketable_status, read-only via API), and deactivated owners all come from real events HubSpot records — they cannot be fabricated. The suite reports these as SKIP; verify those paths once, manually, when first running the corresponding skills on a real portal. - Search index lag. The Search API indexes writes asynchronously; the suite sleeps ~5s before asserting post-mutation counts. On a slow day a fresh mutation can still be missed — re-run the suite before concluding a skill is broken.
- Developer test accounts expire after 90 days without API activity. Running this suite counts as activity, so a monthly run keeps the sandbox alive. Deleted fixtures follow the same 90-day recovery window as production.
before-smokefailures on an empty sandbox are usually legitimate zero-data exits. The shippedbefore.pyscripts exit 0 on “nothing found” — if one exits non-zero on your sandbox, read its output in the report; that’s a real signal, not noise.- Plan-tier gaps. Developer test accounts carry Enterprise-trial features, but a standard sandbox inherits its parent portal’s tier — the v4 workflow round-trip reports SKIP on 403 rather than failing.
Rollback
Teardown is the rollback: uv run skills/sandbox-self-test/scripts/teardown.py removes every marker-matched object, and archived records remain recoverable in the sandbox for 90 days (Settings > Data Management > Deleted Objects). The nuclear option is equally valid: delete the developer test account and create a fresh one — that is what “disposable” means. Nothing this skill does can touch production, by construction.
CI (optional)
A ready-made GitHub Actions workflow ships at ci/sandbox-self-test.yml. To enable it, copy it into your fork’s workflows directory and set the repository secret:
mkdir -p .github/workflows
cp skills/sandbox-self-test/ci/sandbox-self-test.yml .github/workflows/
gh secret set HUBSPOT_SANDBOX_ACCESS_TOKENIt runs preflight → seed → suite → teardown on manual dispatch only and uploads the report as an artifact. It never runs on push or PR — the sandbox is yours, so the trigger is too. (It ships outside .github/workflows/ deliberately: enabling CI that spends your sandbox is an explicit opt-in, and tokens without the workflow scope can still push this repo.)
Problems this skill solves
Related skills in Audit & Planning
/audit-api-usageInventory the integrations, private apps, and internal tooling that call HubSpot APIs, and flag anything on legacy v1-v4 endpoints ahead of HubSpot's March 30, 2027 end of support. Produces a migration checklist to date-based API versions.
/connect-hubspot-mcpConnect Claude Code to HubSpot's official remote MCP server for natural-language CRM reads and writes. Covers OAuth setup, scope selection, verification, and when to use MCP versus this repo's API scripts.
/hubspot-auditRun a comprehensive HubSpot CRM database audit. Analyzes contacts, companies, deals, engagement, data quality, and deliverability. Use when starting a CRM cleanup, onboarding a new client, or performing quarterly health checks.
/hubspot-implementation-planGenerate a phased implementation plan from a HubSpot audit report. Creates prioritized, sequenced cleanup processes with effort estimates, dependencies, and automation feasibility. Use after running /hubspot-audit.