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import hashlib
import pytest
from ctx.adapters.claude_code import engine_hook
from ctx.adapters.claude_code.engine_hook import (
render_committed_query_hook,
render_recommendation_hook,
)
from ctx.engine.lineage import CatalogCapabilityIdentity
from ctx.engine.planner import CapabilityCandidate
from ctx.engine.planning_v3 import (
BenefitAuditReference,
CapabilityBenefitProjection,
CapabilityPlanSelectionV3,
ManualPlanningAuthority,
)
from ctx.engine.protocol import HostAction, ScopeRef, Transition
from ctx.engine.state import CommittedPlanV3, PlanCapabilityV3
from ctx.runtime.query_decision import (
CommittedQueryDecision,
QueryDecisionFailure,
QueryHostDescriptor,
_commit_query_decision,
)
def _digest(value: str) -> str:
return hashlib.sha256(value.encode("utf-8")).hexdigest()
def _reviewed_decision(
*,
host: QueryHostDescriptor,
abstained: bool = False,
) -> CommittedQueryDecision:
scope = ScopeRef(
tenant_id="local",
workspace_id="workspace",
repository_id="repository",
session_id="session",
exposure_id="exposure",
host_context_id=host.host_context_id,
)
candidate = CapabilityCandidate(
capability_id="agent:python-reviewer",
kind="agent",
name="python-reviewer",
source_digest=_digest("entry:agent:python-reviewer"),
normalized_score_ppm=700_000,
matching_signals=("python",),
reason_codes=("signal-match",),
actionability="manual",
)
selection = CapabilityPlanSelectionV3(
presentation=candidate,
catalog_identity=CatalogCapabilityIdentity.create(
capability_id=candidate.capability_id,
kind=candidate.kind,
catalog_namespace_digest=_digest("reviewed-catalog-namespace"),
),
benefit=CapabilityBenefitProjection(
tier="advisory",
individual_net_benefit_u=700_000,
marginal_net_benefit_u=700_000,
),
authority=ManualPlanningAuthority(),
)
plan = CommittedPlanV3(
plan_id="plan-1",
catalog_snapshot_id=_digest("reviewed-catalog"),
decision_digest=_digest("reviewed-plan"),
status="abstained" if abstained else "ready",
abstention_code="no-feasible-capability" if abstained else None,
benefit_audit=BenefitAuditReference(
result_schema_id="ctx.benefit-result-v1",
result_digest=_digest("reviewed-benefit-result"),
policy_schema_id="ctx.benefit-policy-v1",
policy_digest=_digest("reviewed-benefit-policy"),
selection_algorithm_id="ctx.benefit-selection-v1",
calibration_digest=_digest("reviewed-calibration"),
requested_limit=5,
candidate_pool_count=0 if abstained else 1,
search_evaluation_count=0 if abstained else 1,
),
capabilities=() if abstained else (PlanCapabilityV3(selection=selection),),
)
transition = Transition(
event_id="event-1",
scope=scope,
from_revision=1,
to_revision=2,
actions=()
if abstained
else (
HostAction(
action_id="present-1",
kind="PresentBundle",
scope=scope,
precondition_revision=2,
payload={
"plan_digest": plan.decision_digest,
"capabilities": [selection.to_mapping()],
},
),
),
)
return _commit_query_decision(
host=host,
transition=transition,
plan=plan,
journal_revision=2,
journal_record_digest=_digest("reviewed-journal-record"),
release_root_digest=_digest("synthetic-reviewed-release"),
release_sequence=2,
catalog_mode="reviewed",
work_signature_digest=_digest("reviewed-work-signature"),
host_invocation_digest=_digest("reviewed-host-invocation"),
)
EXPECTED_CONTEXT = """CTX recommendation bundle (committed, advisory only):
1. kind=agent | name=python-reviewer | id=agent:python-reviewer | actionability=manual | score_ppm=700000
Use only capabilities relevant to the current task. Do not install, load, or activate anything without user approval."""
def test_committed_query_hook_wraps_exact_claude_decision_for_user_prompt_submit() -> None:
decision = _reviewed_decision(
host=QueryHostDescriptor.claude_code(),
)
assert render_committed_query_hook(decision) == {
"hookSpecificOutput": {
"hookEventName": "UserPromptSubmit",
"additionalContext": EXPECTED_CONTEXT,
}
}
def test_committed_query_hook_abstains_for_empty_committed_decision() -> None:
decision = _reviewed_decision(
host=QueryHostDescriptor.claude_code(),
abstained=True,
)
assert render_committed_query_hook(decision) is None
def test_committed_query_hook_fails_soft_for_failure_and_wrong_host() -> None:
wrong_host = _reviewed_decision(
host=QueryHostDescriptor.codex(),
)
assert (
render_committed_query_hook(QueryDecisionFailure(failure_code="catalog-open-failed"))
is None
)
assert render_committed_query_hook(wrong_host) is None
def test_committed_query_hook_fails_soft_for_an_untrusted_value() -> None:
assert render_committed_query_hook(object()) is None
def test_committed_query_hook_does_not_hide_unexpected_adapter_failures(
monkeypatch: pytest.MonkeyPatch,
) -> None:
decision = _reviewed_decision(
host=QueryHostDescriptor.claude_code(),
)
def fail_unexpectedly(_value: object, *, expected_host_context_id: str) -> str | None:
assert expected_host_context_id == "claude-code"
raise RuntimeError("unexpected adapter defect")
monkeypatch.setattr(engine_hook, "render_committed_query_context", fail_unexpectedly)
with pytest.raises(RuntimeError, match="unexpected adapter defect"):
render_committed_query_hook(decision)
def test_legacy_transition_projection_remains_post_tool_use_compatible() -> None:
transition = Transition(
event_id="legacy-event",
scope=ScopeRef(
tenant_id="local",
workspace_id="workspace",
repository_id="repository",
session_id="session",
exposure_id="exposure",
host_context_id="claude-code",
),
from_revision=1,
to_revision=2,
)
assert render_recommendation_hook(transition) is None
|