v1.3.0 — V1 Plugin Pro upgrade-prompt envelope + 5 new MCP tools surfaced

Companion plugin release to AxonFlow agent v7.7.0. Surfaces the V1
Plugin Pro structured upgrade envelope to the operator on Community
SaaS rate-limit hits and documents 5 new agent-callable MCP tools.

Added

• V1 Plugin Pro upgrade-prompt envelope handling in both
  pre-tool-check.sh (PreToolUse-equivalent) and post-tool-audit.sh
  (PostToolUse-equivalent) hooks. When the agent returns a 429
  (daily-quota) or 403 (graduated / Pro-only) with the structured
  envelope shape, the plugin:

  • Parses upgrade.wording + upgrade.buy_url and prints a single-line
    nudge to stderr (e.g. [AxonFlow] Daily limit reached on Free tier (200 events). Pro raises this to 2,000/day. Resets at midnight UTC.).
    Surfaced at most once per UTC day so it doesn't spam every hook.
  • Honours Retry-After / resets_at by stamping a back-off file at
    ${XDG_CACHE_HOME:-~/.cache}/axonflow/throttle-until. Subsequent hook
    fires fall open locally without re-hammering the agent until the
    deadline passes. Prevents the silent-retry pattern (581 retries in
    18h pre-envelope) that motivated this work.

• References to the 5 new agent-callable MCP tools in the README.
  The agent can answer "what's my tenant ID?", "what would I get on Pro?", and related questions directly via:

  • axonflow_get_tenant_id — Free + Pro, no gate.
  • axonflow_list_pro_features — Free + Pro, locked feature list.
  • axonflow_request_approval — Free 1/7d rolling, Pro unlimited.
  • axonflow_create_tenant_policy — Free 2 active max, Pro unlimited.
  • axonflow_get_cost_estimate — Pro-only, hidden from Free tools/list.

  Auto-discovered via the existing MCP HTTP transport — no client-side
  registration needed.

Changed

• README "Pro tier license token" section corrected to the locked V1
  numbers: 2,000 events/day (was 1,000), unlimited custom policies,
  unlimited HITL approvals, and the LLM cost pre-flight feature added.
• README MCP-tools section renumbered from "10 MCP tools" to "15 MCP
  tools" to include the new V1 Pro tier-identity / tier-capability tools.
• pro-tier-status skill — prefer the local
  scripts/recover.sh status over the MCP tool for tenant_id / tier
  queries. The local script reads state directly and answers without
  an agent round-trip. Faster, works offline, and works exactly when
  the user typically asks ("the agent isn't reachable, what's my
  tenant ID for Stripe Checkout?"). The MCP tool stays as a
  documented fallback for the rare cases where server-truth matters
  (revocation, clock skew, server-side overrides). Same flip applied
  to claude / cursor sister plugins.

Internal

• runtime-e2e/v1_pro_envelope_surface/ — drives a fresh Free-tier
  tenant past the 200/day cap on try.getaxonflow.com, asserts the
  plugin's envelope helper prints the locked V1 wording to stderr
  and stamps a throttle deadline.
• Added tests/test-upgrade-prompt.sh — 21 unit assertions across 8
  scenarios for every branch of the envelope handler.
• Added tests/test-skill-status-prefers-local.sh — 4 content assertions
  locking the local-first SKILL.md ordering in; wired into
  .github/workflows/test.yml. The sister axonflow-claude-plugin
  ships the runtime proof that the wording flip changes downstream
  LLM behaviour (structurally identical wording across the three
  plugins).