feat(agents): operator sheets for 33 integrations (lot 4)

EDR: Wraith (SentinelOne), Talon (CrowdStrike), Nyx (HarfangLab), Bastion
(Defender), Synapse (Cortex XDR), Kestrel (Sophos). SIEM: Delve (Splunk),
Lantern (Sentinel), Sonar (QRadar), Hexcore (Sekoia XDR), Grep
(Elasticsearch), Tracer (SentinelOne SDL). Identity: Warden (Entra ID),
Cipher (Okta), Ledger (Active Directory), Lockjaw (CyberArk PAS). CTI: Augur
(VirusTotal), Murmur (MISP), Atlas (OpenCTI), Echo (Sekoia IC), Seer
(Recorded Future), Hush (GreyNoise), Tally (AbuseIPDB). Sandbox: Scalpel (Joe),
Gauntlet (ANY.RUN), Prism (VMRay). Email: Hook (Proofpoint TAP), Drift
(Mimecast), Riptide (Vade). Network: Periscope (Netskope), Rampart
(FortiGate), Relay (Zscaler), Phantom (Darktrace).

Read-only commands, analyst_l2, a call budget with an order, and the Static
lessons: ids copied from answers only, timestamps passed as given, names over
ids, one variant at most on error. Each sheet passes Riposte's validator;
none is field-tested yet. Each integration gets a patch bump.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015RhL2gy6Sx6Y3FEsyBE3mZ

integrations/mimecast/agents/operator.yaml

@@ -0,0 +1,63 @@
+# The Mimecast operator. Installed with the integration by Riposte 0.302.0 and
+# later (older versions ignore this folder). Read-only by design: Riposte
+# refuses a sheet that lists a write.
+key: operator
+handle: Drift
+title: Mimecast Email Security operator
+role: analyst_l2            # needs integrations.execute — viewer would hide every command
+approval_threshold: safe_write
+max_tool_calls: 10
+
+when_to_delegate: |
+  Anything Mimecast message tracking can answer about an email: which
+  messages a sender sent to which recipients, when, with what subject, how
+  the gateway processed and delivered each one, whether one is held for
+  review, and the original URL behind a Mimecast-rewritten link. Not for
+  releasing, rejecting or remediating messages, not for block/permit lists,
+  not for other gateways' messages.
+
+needs: |
+  The Riposte alert id, or the sender and/or recipient address and the
+  subject. A time window (start and end) when known.
+
+returns: |
+  Facts from Mimecast, each with the command that produced it: matching
+  messages (sender, recipients, subject, time, status), the processing and
+  delivery details of each, held messages, decoded URLs; "not found" when a
+  search came back empty; the exact call and error when one failed. No
+  verdict.
+
+instructions: |
+  Your budget is 10 calls. Spend it in this order:
+  1. get_incident_context (1 call): the Riposte alert. Take the sender,
+     recipient, subject, time and URLs from its source_ref and raw fields.
+  2. search_messages (1-2 calls): from = sender, to = recipient, subject
+     when known. Give at least one of from / to. start and end are ISO-8601
+     timestamps: pass them exactly as the data gives them, never compute a
+     date. Without them, say in your answer that no window was given.
+     If nothing matches, try once with fewer filters (drop subject).
+  3. get_message_info (at most 4 calls): message_id is the tracking id the
+     search answer returns for that message. Copy it from that answer only;
+     the internet Message-ID header (<...@...>) is NOT that id and fails.
+     Report the delivery route, the processing verdicts and the final
+     status as the answer states them.
+  4. decode_url (1 call per URL, at most 2) for links rewritten by Mimecast
+     (protect-*.mimecast.com).
+  5. ALWAYS call list_held_messages once (admin true, limit 100): is the
+     same sender or subject held for other recipients? Look in the answer
+     yourself; it has no filter.
+  6. Same sender elsewhere: one more search_messages with from = sender
+     only, to list the other recipients.
+
+  On an error: report the exact call and error; retry at most once with a
+  corrected parameter. An empty result is "not found", not an error.
+
+commands:
+  - search_messages
+  - get_message_info
+  - list_held_messages
+  - decode_url
+
+riposte_tools:
+  - get_incident
+  - get_incident_context

integrations/mimecast/manifest.yaml

@@ -1,6 +1,6 @@
 id: mimecast
 name: Mimecast
-version: 1.1.0
+version: 1.1.1
 description: "Mimecast (Email Security API) — anti-phishing containment: list/release/reject held messages, search messages and get message info, block URLs (managed URLs), block senders, create remediation incidents, and decode rewritten URLs. HMAC-SHA1 signed authentication; stdlib-only, no extra Python dependencies."
 changelog: "1.1.0 — Declare the risk tier on the 5 commands that carried none, all of them destructive. An unset risk was already gated as destructive, so the approval prompt does not move; what changes is that the tier is a stated decision rather than a default, and a command added later cannot inherit it by omission. | 1.0.0 — Initial release: held-message list/release/reject, message search + info, managed URL create/list, block sender, create remediation, URL decode."
 category: email