* refactor(backend): classify errors via sentinels instead of substring matches
Introduce package-local sentinel errors in the github, task repo, agent
lifecycle, and office/skills packages. Producers wrap with fmt.Errorf("%w: ...")
so callers can classify via errors.Is/errors.As instead of brittle
strings.Contains(err.Error(), ...) checks that break on library upgrades.
Sentinels added (or relocated to errors.go):
- github: ErrInvalidToken (new); ErrInvalidPRURL, ErrTaskNotFound, ErrSelfApprove
moved from service.go.
- task/repository/sqlite: ErrTaskNotFound, ErrOfficeSessionRaceConflict.
- lifecycle: ErrAgentAlreadyRunning, ErrAgentReported.
- office/skills: ErrSkillNotFound, ErrSkillFileNotFound.
Consumers updated to errors.Is/errors.As across orchestrator, task/handlers,
github, and office/skills. AssociateExistingPRByURL switches %v -> %w so the
inner parsePRURL error stays in the chain. process_handlers now uses
errors.Is(err, syscall.ECONNREFUSED) and lifecycle.ErrNoExecutionForSession
plus a small isTimeoutError helper backed by errors.As.
A new taskDeleterAdapter in cmd/kandev/turn_adapters.go translates
taskrepo.ErrTaskNotFound to github.ErrTaskNotFound at the wiring boundary,
avoiding a layering violation between the github and task packages.
The one remaining substring check, in CreateTaskSession, is encapsulated
inside the repo and converts the SQLite UNIQUE-violation message into the
typed ErrOfficeSessionRaceConflict sentinel so callers never see the driver
string.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
* test(backend): add TestErrorsAreClassifiable for refactored packages
Pin the new sentinel-based contract for each refactored package. Each test
exercises the producer paths and asserts errors.Is reaches the sentinel
through the wrap chain, and (where applicable) confirms untyped lookalike
strings no longer classify.
- github: isTaskNotFound, AssociateExistingPRByURL/ErrInvalidPRURL,
ConfigureToken/ErrInvalidToken (using a noop secret manager).
- task/repository/sqlite: GetTask, DeleteTask, UpdateTaskState wrap
ErrTaskNotFound.
- task/handlers: isNotFound + isAgentReportedError follow the typed chain.
- orchestrator: each isXError classifies exact + wrapped sentinels, rejects
untyped lookalikes.
- office/skills: readUserHomeSkillInventoryFile wraps ErrSkillFileNotFound;
ErrSkillNotFound survives fmt.Errorf("%w", ...).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
* test(github): drop network-hitting subtest from errors_test
The "ConfigureToken wraps ErrInvalidToken when validation fails" subtest
constructed a real PATClient and called GetAuthenticatedUser, which makes
a live HTTP request to api.github.com. That's flaky in CI / offline dev
and violates the unit-test boundary (caught in review).
Replace with a sentinel-survives-wrap-pattern check that locks in the
exact %w/%w shape used by ConfigureToken, plus an assertion that the
inner cause stays reachable through errors.Is. The full ConfigureToken
flow stays covered by service_token_test.go and integration tests.
Remove the now-unused noopSecretManager stub type.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
* fix(task): restore "timed out" UX for plain-fmt.Errorf timeout producers
The original createPromptErrorMessage rendered the friendly "Request timed
out…" hint via strings.Contains(err.Error(), "timeout"). The refactor
replaced it with errors.Is(context.DeadlineExceeded) + a net.Error
Timeout() helper — strictly typed. But several upstream producers along
the prompt path (service.WaitForSessionReady, agent-stream connect waits
in lifecycle/session.go and manager_interaction.go, agentctl health waits
in agentctl/client.go and launcher.go, the orchestrator's own
waitForSessionReady) return plain fmt.Errorf("timeout …") with no typed
Timeout() method, so the typed check missed them and the user saw the
generic "Failed to send message to agent" instead.
Add a substring fallback inside isTimeoutError as a UX safety net while
keeping the primary typed paths intact. Lock the contract with table
tests covering all three classes (net.Error timeout, plain string,
context.DeadlineExceeded) so any future trim of the fallback breaks
loudly. Migrating each upstream producer to a typed sentinel is tracked
as out-of-scope follow-up.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
* test(backend): tighten classification tests to exercise typed-sentinel contracts
Addresses bot-review feedback on PR #1057:
- task/handlers/errors_test.go: cover all four not-found sentinels
(taskrepo.ErrTaskNotFound, service.ErrDocumentNotFound,
service.ErrTaskPlanNotFound, service.ErrRevisionNotFound) in
TestErrorsAreClassifiable via a table-driven loop, instead of only
one. Drop the spurious Deadline() *time.Time method on timeoutNetErr
— it isn't part of net.Error and the existing `var _ net.Error =
timeoutNetErr{}` line already pins the interface.
- orchestrator/scheduler/scheduler_test.go: testTaskRepository was
still returning the local scheduler.ErrTaskNotFound, which doesn't
satisfy the production processTasks check (now errors.Is on
taskrepo.ErrTaskNotFound). Mirror the real sqlite repo's wrap so the
mock and prod paths agree. The local scheduler.ErrTaskNotFound is
truly dead after that, so drop it from scheduler.go.
- office/skills: the wrap-pattern subtest in errors_test.go was only
testing fmt.Errorf, not production code. Move the contract assertion
to service_test.go (external skills_test package) where it drives
the real GetSkillFromConfig lookup path against an empty in-memory
repository.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
* refactor(backend): drop redundant context.DeadlineExceeded check and fix doc grammar
Addresses bot-review feedback on PR #1057:
- task/handlers/message_handlers.go::createPromptErrorMessage: the
explicit errors.Is(promptErr, context.DeadlineExceeded) is redundant
with isTimeoutError, which already matches via errors.As against
Timeout() — context.DeadlineExceeded implements Timeout()==true.
Inline comment documents the consolidation.
- github/errors.go: fix grammar in the ErrTaskNotFound doc comment
("is the sentinel cleanup paths check for to distinguish" →
"is the sentinel that cleanup paths check to distinguish").
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---------
Co-authored-by: Kandev Agent <agent@kandev.dev>
Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
Carlos Florêncio