feat(agents): add manifest-driven gator agent

architecture/sandbox.md

@@ -77,7 +77,9 @@ where that socket directory is hidden before privilege drop.
 
 Credential placeholders in proxied HTTP requests can be resolved by the proxy
 when policy allows the target endpoint. Secrets must not be logged in OCSF or
-plain tracing output.
+plain tracing output. The supervisor uses revision-scoped placeholders for
+rotating provider credentials; provider environment keys beginning with
+`v<digits>_` are reserved for that placeholder namespace.
 
 Provider profiles can also declare dynamic token grants. For matching HTTP
 endpoints, the supervisor obtains a SPIFFE JWT-SVID from the local Workload API,

crates/openshell-core/src/provider_credentials.rs

@@ -236,4 +236,54 @@ mod tests {
             Some("new")
         );
     }
+
+    #[test]
+    fn stale_generation_falls_back_to_current_credential_after_retention_window() {
+        let state = ProviderCredentialState::from_environment(
+            10,
+            HashMap::from([("GITHUB_TOKEN".to_string(), "old".to_string())]),
+            HashMap::new(),
+            HashMap::new(),
+        );
+
+        for revision in 11..20 {
+            state.install_environment(
+                revision,
+                HashMap::from([("GITHUB_TOKEN".to_string(), format!("new-{revision}"))]),
+                HashMap::new(),
+                HashMap::new(),
+            );
+        }
+
+        let resolver = state.resolver().expect("resolver");
+        assert_eq!(
+            resolver.resolve_placeholder("openshell:resolve:env:v10_GITHUB_TOKEN"),
+            Some("new-19")
+        );
+    }
+
+    #[test]
+    fn stale_removed_generation_fails_closed_after_retention_window() {
+        let state = ProviderCredentialState::from_environment(
+            10,
+            HashMap::from([("GITHUB_TOKEN".to_string(), "old".to_string())]),
+            HashMap::new(),
+            HashMap::new(),
+        );
+
+        for revision in 11..20 {
+            state.install_environment(
+                revision,
+                HashMap::from([("OTHER_TOKEN".to_string(), format!("other-{revision}"))]),
+                HashMap::new(),
+                HashMap::new(),
+            );
+        }
+
+        let resolver = state.resolver().expect("retained resolver");
+        assert_eq!(
+            resolver.resolve_placeholder("openshell:resolve:env:v10_GITHUB_TOKEN"),
+            None
+        );
+    }
 }

crates/openshell-core/src/secrets.rs

@@ -177,6 +177,13 @@ impl SecretResolver {
         let mut by_placeholder = HashMap::with_capacity(provider_env.len());
 
         for (key, value) in provider_env {
+            if uses_reserved_revision_namespace(&key) {
+                tracing::warn!(
+                    provider_env_key = %key,
+                    "skipping provider credential env var in reserved placeholder namespace"
+                );
+                continue;
+            }
             let placeholder = placeholder_for_env_key_for_revision(&key, revision);
             let secret = SecretValue {
                 value,
@@ -192,7 +199,11 @@ impl SecretResolver {
             }
         }
 
-        (child_env, Some(Self { by_placeholder }))
+        if by_placeholder.is_empty() {
+            (child_env, None)
+        } else {
+            (child_env, Some(Self { by_placeholder }))
+        }
     }
 
     pub fn merge<'a>(resolvers: impl IntoIterator<Item = &'a Self>) -> Option<Self> {
@@ -215,7 +226,7 @@ impl SecretResolver {
         let secret = if let Some(secret) = self.by_placeholder.get(value) {
             secret
         } else {
-            let key = alias_env_key(value)?;
+            let key = revisioned_placeholder_env_key(value).or_else(|| alias_env_key(value))?;
             let canonical = placeholder_for_env_key(key);
             self.by_placeholder.get(&canonical)?
         };
@@ -469,6 +480,34 @@ fn alias_env_key(token: &str) -> Option<&str> {
     (key_end == token.len() && key_end > key_start).then_some(&token[key_start..key_end])
 }
 
+fn revisioned_placeholder_env_key(token: &str) -> Option<&str> {
+    let suffix = token.strip_prefix(PLACEHOLDER_PREFIX)?;
+    let suffix = suffix.strip_prefix('v')?;
+    let underscore = suffix.find('_')?;
+    let (revision, key) = suffix.split_at(underscore);
+    if revision.is_empty() || !revision.bytes().all(|b| b.is_ascii_digit()) {
+        return None;
+    }
+    let key = &key[1..];
+    if key.is_empty() || !key.bytes().all(is_env_key_char) {
+        return None;
+    }
+    Some(key)
+}
+
+fn uses_reserved_revision_namespace(key: &str) -> bool {
+    let Some(suffix) = key.strip_prefix('v') else {
+        return false;
+    };
+    let Some((revision, key)) = suffix.split_once('_') else {
+        return false;
+    };
+    !revision.is_empty()
+        && revision.bytes().all(|b| b.is_ascii_digit())
+        && !key.is_empty()
+        && key.bytes().all(is_env_key_char)
+}
+
 fn token_boundary_ok(text: &str, abs_start: usize, token_end: usize, token: &str) -> bool {
     if token.starts_with(PLACEHOLDER_PREFIX) {
         return token_end == text.len()
@@ -1044,6 +1083,18 @@ mod tests {
         );
     }
 
+    #[test]
+    fn provider_env_rejects_revision_namespace_keys() {
+        let (child_env, resolver) = SecretResolver::from_provider_env(
+            [("v10_GITHUB_TOKEN".to_string(), "ambiguous".to_string())]
+                .into_iter()
+                .collect(),
+        );
+
+        assert!(child_env.is_empty());
+        assert!(resolver.is_none());
+    }
+
     #[test]
     fn rewrites_exact_placeholder_header_values() {
         let (_, resolver) = SecretResolver::from_provider_env(
@@ -1077,6 +1128,28 @@ mod tests {
         );
     }
 
+    #[test]
+    fn rewrites_stale_revisioned_bearer_placeholder_to_current_alias() {
+        let (_, resolver) = SecretResolver::from_provider_env_for_revision_with_current_aliases(
+            [("GITHUB_TOKEN".to_string(), "ghp-current".to_string())]
+                .into_iter()
+                .collect(),
+            HashMap::new(),
+            42,
+            true,
+        );
+        let resolver = resolver.expect("resolver");
+
+        assert_eq!(
+            rewrite_header_line_checked(
+                "Authorization: Bearer openshell:resolve:env:v10_GITHUB_TOKEN",
+                &resolver,
+            )
+            .expect("stale revision should fall back to current alias"),
+            "Authorization: Bearer ghp-current"
+        );
+    }
+
     #[test]
     fn rewrites_provider_shaped_alias_header_values() {
         let (_, resolver) = SecretResolver::from_provider_env(

crates/openshell-ocsf/src/format/shorthand.rs

@@ -169,12 +169,13 @@ impl OcsfEvent {
                     (false, true) => format!(" {action}"),
                     (false, false) => format!(" {action}{arrow}"),
                 };
-                let message_ctx =
-                    if detail.is_empty() && rule_ctx.is_empty() && reason_ctx.is_empty() {
-                        message_tag(&e.base)
-                    } else {
-                        String::new()
-                    };
+                let include_message = activity == "FAIL"
+                    || (detail.is_empty() && rule_ctx.is_empty() && reason_ctx.is_empty());
+                let message_ctx = if include_message {
+                    message_tag(&e.base)
+                } else {
+                    String::new()
+                };
                 format!("NET:{activity} {sev}{detail}{rule_ctx}{reason_ctx}{message_ctx}")
             }
 
@@ -595,6 +596,34 @@ mod tests {
         );
     }
 
+    #[test]
+    fn test_network_activity_shorthand_fail_shows_message_with_destination() {
+        let event = OcsfEvent::NetworkActivity(NetworkActivityEvent {
+            base: {
+                let mut b = base(4001, "Network Activity", 4, "Network Activity", 6, "Fail");
+                b.severity = crate::enums::SeverityId::Low;
+                b.set_message("TLS relay error: unexpected eof");
+                b
+            },
+            src_endpoint: None,
+            dst_endpoint: Some(Endpoint::from_domain("api.github.com", 443)),
+            proxy_endpoint: None,
+            actor: None,
+            firewall_rule: None,
+            connection_info: None,
+            action: None,
+            disposition: None,
+            observation_point_id: None,
+            is_src_dst_assignment_known: None,
+        });
+
+        let shorthand = event.format_shorthand();
+        assert_eq!(
+            shorthand,
+            "NET:FAIL [LOW] api.github.com:443 [msg:TLS relay error: unexpected eof]"
+        );
+    }
+
     #[test]
     fn test_network_activity_shorthand_shows_message_when_no_key_fields() {
         let event = OcsfEvent::NetworkActivity(NetworkActivityEvent {

crates/openshell-providers/src/profiles.rs

@@ -1093,6 +1093,15 @@ pub fn validate_profile_set(
                         "credentials.env_vars",
                         "credential env var must not be empty",
                     ));
+                } else if uses_reserved_placeholder_revision_namespace(env_var.trim()) {
+                    diagnostics.push(ProfileValidationDiagnostic::error(
+                        source,
+                        profile_id,
+                        "credentials.env_vars",
+                        format!(
+                            "credential env var '{env_var}' uses reserved OpenShell placeholder revision namespace"
+                        ),
+                    ));
                 } else if !env_vars.insert(env_var.trim().to_string()) {
                     diagnostics.push(ProfileValidationDiagnostic::error(
                         source,
@@ -1612,6 +1621,19 @@ fn is_kubernetes_service_host(host: &str) -> bool {
     (is_service_name || is_cluster_local_service) && labels.iter().all(|label| !label.is_empty())
 }
 
+fn uses_reserved_placeholder_revision_namespace(key: &str) -> bool {
+    let Some(suffix) = key.strip_prefix('v') else {
+        return false;
+    };
+    let Some((revision, key)) = suffix.split_once('_') else {
+        return false;
+    };
+    !revision.is_empty()
+        && revision.bytes().all(|b| b.is_ascii_digit())
+        && !key.is_empty()
+        && key.bytes().all(|b| b.is_ascii_alphanumeric() || b == b'_')
+}
+
 static DEFAULT_PROFILES: OnceLock<Vec<ProviderTypeProfile>> = OnceLock::new();
 
 #[must_use]
@@ -2345,7 +2367,7 @@ credentials:
     env_vars: [BROKEN_TOKEN]
     auth_style: query
   - name: api_key
-    env_vars: [BROKEN_TOKEN, ""]
+    env_vars: [BROKEN_TOKEN, "", v10_GITHUB_TOKEN]
     auth_style: unknown
   - name: path_key
     env_vars: [PATH_TOKEN]
@@ -2373,6 +2395,11 @@ binaries: ["", /usr/bin/broken]
         assert!(messages.contains(&"duplicate credential name: api_key"));
         assert!(messages.contains(&"duplicate credential env var 'BROKEN_TOKEN'"));
         assert!(messages.contains(&"credential env var must not be empty"));
+        assert!(
+            messages.iter().any(
+                |message| message.contains("reserved OpenShell placeholder revision namespace")
+            )
+        );
         assert!(messages.contains(&"query_param is required for query auth"));
         assert!(messages.contains(&"path_template is required for path auth"));
         assert!(messages.iter().any(|message| {

docs/sandboxes/providers-v2.mdx

@@ -260,7 +260,7 @@ binaries:
 
 `category` groups profiles in `openshell provider list-profiles`. Use one of the values in the category enum.
 
-`credentials` declares the credential names, environment variables, auth metadata, optional refresh metadata, and optional dynamic token grant metadata for the provider type. The `auth_style` field accepts `basic`, `bearer`, `header`, `query`, or `path`. When `auth_style` is `path`, set `path_template` to a URL path containing the `{credential}` placeholder exactly once (for example, `/v1/{credential}/resources`). Static credentials are exposed as placeholder environment variables and resolved in outbound HTTP requests. Dynamic token grants are resolved by the sandbox proxy on demand for matching profile endpoints and support `bearer` or `header` placement.
+`credentials` declares the credential names, environment variables, auth metadata, optional refresh metadata, and optional dynamic token grant metadata for the provider type. The `auth_style` field accepts `basic`, `bearer`, `header`, `query`, or `path`. When `auth_style` is `path`, set `path_template` to a URL path containing the `{credential}` placeholder exactly once (for example, `/v1/{credential}/resources`). Static credentials are exposed as placeholder environment variables and resolved in outbound HTTP requests. Dynamic token grants are resolved by the sandbox proxy on demand for matching profile endpoints and support `bearer` or `header` placement. Credential environment variable names must not use the reserved `v<digits>_` prefix, such as `v10_GITHUB_TOKEN`, because OpenShell uses that namespace for revision-scoped placeholders.
 
 `discovery` controls what `--from-existing` scans when
 `providers_v2_enabled=true`. Each entry in `discovery.credentials` must name a