fix: feat: gardener escalation recipes — pattern-matched playbooks for CI failures (#68)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

gardener/recipes/cascade-rebase.toml

@@ -0,0 +1,23 @@
+# gardener/recipes/cascade-rebase.toml — PR outdated after main moved
+#
+# Trigger: PR mergeable=false (stale branch or dismissed approval)
+# Playbook: rebase, re-approve if dismissed, retry merge
+
+name        = "cascade-rebase"
+description = "PR outdated after main moved — mergeable=false or stale approval"
+priority    = 20
+
+[trigger]
+pr_mergeable = false
+
+[[playbook]]
+action      = "rebase-pr"
+description = "Rebase PR onto main"
+
+[[playbook]]
+action      = "re-approve-if-dismissed"
+description = "Re-approve if approval was dismissed by push"
+
+[[playbook]]
+action      = "retry-merge"
+description = "Retry merge"

gardener/recipes/chicken-egg-ci.toml

@@ -0,0 +1,25 @@
+# gardener/recipes/chicken-egg-ci.toml — PR introduces CI step that fails on pre-existing code
+#
+# Trigger: New .woodpecker/*.yml in PR + lint/check step + failures on unchanged files
+# Playbook: make step non-blocking, create per-file issues, create follow-up to remove bypass
+
+name        = "chicken-egg-ci"
+description = "PR introduces a CI pipeline/linting step that fails on pre-existing code"
+priority    = 10
+
+[trigger]
+pr_files              = '\.woodpecker/.*\.yml$'
+step_name             = '(?i)(lint|shellcheck|check)'
+failures_on_unchanged = true
+
+[[playbook]]
+action      = "make-step-non-blocking"
+description = "Make failing step non-blocking (|| true) in the PR"
+
+[[playbook]]
+action      = "create-per-file-issues"
+description = "Create per-file fix issues for pre-existing violations"
+
+[[playbook]]
+action      = "create-followup-remove-bypass"
+description = "Create follow-up issue to remove || true once fixes land"

gardener/recipes/flaky-test.toml

@@ -0,0 +1,20 @@
+# gardener/recipes/flaky-test.toml — CI fails intermittently
+#
+# Trigger: Test step fails + multiple CI attempts (same step, different output)
+# Playbook: retrigger CI (max 2x), quarantine test if still failing
+
+name        = "flaky-test"
+description = "CI fails intermittently — same step fails across multiple attempts"
+priority    = 30
+
+[trigger]
+step_name    = '(?i)test'
+min_attempts = 2
+
+[[playbook]]
+action      = "retrigger-ci"
+description = "Retrigger CI (max 2 retries)"
+
+[[playbook]]
+action      = "quarantine-test"
+description = "If still failing, quarantine test and create fix issue"

gardener/recipes/shellcheck-violations.toml

@@ -0,0 +1,20 @@
+# gardener/recipes/shellcheck-violations.toml — ShellCheck step fails
+#
+# Trigger: Step named *shellcheck* fails with SC#### codes in output
+# Playbook: parse per-file, create one issue per file, label backlog
+
+name        = "shellcheck-violations"
+description = "ShellCheck step fails with SC#### codes in output"
+priority    = 40
+
+[trigger]
+step_name = '(?i)shellcheck'
+output    = 'SC\d{4}'
+
+[[playbook]]
+action      = "shellcheck-per-file"
+description = "Parse output by file, create one fix issue per file with specific SC codes"
+
+[[playbook]]
+action      = "label-backlog"
+description = "Label created issues as backlog"