Mocking the inputs removed the work of inventing test data, but it also
removed the user's sight of what was actually tested. A green check
produced by {"topic": "test"} is weak evidence about a workflow, and an
invisible mock is a quieter version of the same false confidence a
passing-but-unverified test gives.
So keep the gate and pre-fill it: the form arrives with the mocked values
already in it, unfrozen, so the common case is one click rather than N
fields to type, and anyone who cares can edit before running. The cost
item 5 removed was PRODUCING the data, not confirming it.
Upload fields stay empty and still ask, because nothing can mock a file --
and the mock generator falls back to a plain string for types it does not
know, so it would otherwise pre-fill a file field with "test". New
``upload_variable_names`` and ``without_upload_values`` strip those values;
``needs_upload_inputs`` is re-expressed on top of the first rather than
duplicating the type check.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The run id already reaches a client over SSE, which is enough to open the
run on the canvas while the page is up. It is not enough afterwards: SSE
frames do not survive a reload, and the persisted card's ``run_ids`` holds
BUILDER run ids -- uuid4s the engine mints, which resolve to nothing
outside it. So on reopening a session the card was the only record of the
result, and the canvas view was unreachable.
Put ``dify_run_id`` on TestResultCard, beside ``run_ids``, wired at all
nine construction sites across the Build, Edit and Fix flows. Now the
canvas is reachable from the durable conversation too, which is what makes
the card's ``output`` genuinely the client's choice to render or skip
rather than the only surviving copy.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Streaming the test run gives the user a live progress bar but no results:
NodeEvent carries node_id/title/status/error and nothing else, so a client
watching the stream learns which node is running, never what it produced.
The results already exist -- the run is a normal InvokeFrom.DEBUGGER draft
run, its node executions are in the database, and the editor's canvas
already knows how to render exactly that view. It was simply never told
which run to open.
So put the Dify run id where a client can reach it:
- NodeEvent gains run_id, filled from the streaming frame. Every non-ping
frame is stamped with workflow_run_id, so this arrives with the FIRST
node event -- while the run is still going, which is the point.
- The node SSE frame publishes it alongside the existing fields.
- mark_test_success / mark_test_error carry dify_run_id in both the Build
and Edit flows, so the terminal state names its run too.
This is what makes per-node results land on the graph, where a node's
inputs and outputs already have a home, instead of only as a JSON blob on
a conversation card.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Three minor whole-branch-review fixups:
- ResourceOption.readiness ("ready"/"missing_config") was computed but never
shown to the model: discover_resources's recommender prompt listed ids and
labels only, so it could recommend an unauthorized tool; _GAP_SYSTEM showed
readiness in the listing (assess_capability_gap) but never defined what
missing_config means. Both prompts now show readiness and state that
missing_config is installed-but-not-authorized, i.e. not usable -- pinned
with tests asserting the literal "missing_config" in the constructed
prompts.
- strings.py: dropped three orphaned catalogue entries ("Here's the initial
plan.", "Ask each time", "Prefer audited") -- the conflict-policy concept
they backed was removed end to end; nothing in the handlers emits them.
- core/workflow/generator/tool_catalogue.py: provider.need_credentials was
read OUTSIDE the per-provider try/except that already guards
get_tools()/tool parsing. This module is shared with the cmd+K /create and
/refine flows, so a provider whose property raised would break those too,
not just the Builder. Moved the read inside the try/except so a bad
provider is skipped like any other.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
_terminal_output json.dumps'd a node's outputs with no length limit. Node
outputs are only truncated upstream at ~100,000 chars per string, so a
report-generating workflow -- the Builder's showcase case -- could push
hundreds of KB of JSON into a dify_builder_conversation_items row, the SSE
frame, and the localizer walk on every successful build.
Cap the rendered output at 2000 chars with a visible truncation marker
before it reaches TestResultCard.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
run_draft's streaming path introduced Run.status="running" (outcome
genuinely unknown -- the progress stream ended before the run did) as a
third status alongside "succeeded"/"failed", but neither
handle_test_and_repair (Build) nor handle_verify (Fix) knew about it: both
treated anything short of "succeeded" as a failure, so a truncated run got
labeled "Test run -- Failed" and, in Build, had a graph repair diagnosed
and staged against it while the run might still be executing.
Both handlers now branch on status=="running" before the failure path: a
neutral notice explains the outcome couldn't be determined, and the flow
returns to a re-runnable waiting state (build.execution / fix.await_testdata)
without ever calling diagnose or propose_repair.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Add assess_capability_gap: one plain sentence naming a plan step nothing
installed can perform, or "" when the plan is covered. Grounded only in
installed resources -- there is no marketplace lookup, so it names a missing
CAPABILITY, never a product to install. A missing_config tool (installed but
unauthorized, from the prior task's real readiness) doesn't count as
covering a step either, since the model is shown each option's readiness
alongside its label and kind.
Wired through the full agent seam: the DifyBuilderAgent protocol, the real
LlmBuilderAgent (delegates to build.assess_capability_gap), and the
PlaceholderAgent test double (returns ""). handlers_build.py calls it
after discover_resources and, when non-empty, appends a NoticeItem beside
the existing empty-resources notice -- the two are independent and can
both fire.
Like its sibling cognition functions, it degrades to "" (never raises) on
no model, an LLM error, or an unparseable reply: a gap that can't be
assessed isn't a gap worth inventing. The sentence is LLM-generated prose
already in the user's language (json_language_instruction), not a
catalogue entry, so no static string was added.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
A passing build test reported "All checks passed" and threw away the
run's actual node outputs. TestResultCard gains an `output: str` field
(pretty-printed JSON of the last node that produced anything, "" when
none); handle_test_and_repair's success card now populates it via a new
_terminal_output(per_node) helper.
_terminal_output is deliberately status-agnostic (no node.status filter):
per-node status spellings differ by source ("success" vs "succeeded"), and
a status filter that silently misses would defeat the point of the card.
FakeDifyPort (tests/unit_tests/core/dify_builder/fakes.py) gains a
settable run_outputs dict, seeded onto the success-path NodeOutput's
outputs, so tests can assert on what the card shows without hand-rolling
a Run.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
handle_execution's run_test branch used to stop and ask a human for test
data any time none was prepared yet, even when every declared start
variable was something the agent could invent. Add
needs_upload_inputs(schema) -> bool (true only for a declared file /
file-list variable) and gate BUILD_AWAIT_TESTDATA on it: everything else
is now mocked inline via env.agent.generate_mock_inputs and the flow goes
straight to build.test_and_repair. A schema mixing text and file
variables still stops at the gate, since the file can't be invented.
Updates three full-build-flow tests whose generated graph has no file
start variable, so run_test now lands directly at build.review instead of
pausing at the testdata gate.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Code review finding: handle_review's re_fix branch and handle_reverted both
emitted PlanCard("Build plan", "v1") before falling through to
build.initial_plan's unconditional resource discovery, which falls through
again to confirm_resources -- which emits PlanCard("Build plan", "v1") a
SECOND time, now with resources bound. Before this task those two cards were
tagged v1 then v2, so they were visibly different plans; now both say v1,
so the loop-back shows the same plan card twice in one pass. Task 2 already
removed this exact duplicate from the straight-through path
(handle_goal_analysis); it should not survive on the loop-back and not on
the straight-through path.
Fix: handle_review's re_fix branch and handle_reverted still draft
fc.plan_items/fc.plan_version_tag (needed by discovery and the eventual
confirm_resources card) but no longer emit a PlanCard or claim cards=["plan"]
on their AssistantTurnItem (now cards=[], matching the existing
handlers_fix.py precedent for a turn with no card). There is now exactly ONE
plan card per pass, tagged v1, on every path: straight-through,
continue_adjusting, and retry_after_revert.
Updated the two direct-handler unit tests that asserted the now-removed
card, and extended test_review_continue_adjusting_then_reapprove_is_
idempotent (an end-to-end Runner-driven test) to assert re_fix adds zero new
plan cards and the subsequent confirm_resources adds exactly one, tagged v1.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Code review finding: handle_goal_analysis built its own ProgressReporter
(build-review-requirements/build-draft-plan) and finish()ed it, then
tail-called _discover_and_offer_resources, which built a SECOND reporter
under the SAME env.operation_id. ProgressReporter's revision counter starts
at 0 per instance, so the second reporter's activate/finish calls restarted
revision at 1 -- two progress events with revision 1 (and 2, and 3) under
one operation_id. contract.py's ProgressEventData docstring states revision
is monotonic within an operation_id; every other handler across the three
handler files uses exactly one reporter per step -- this was the sole
exception, on the most-travelled build path.
Fix: _discover_and_offer_resources now takes an optional `progress`
parameter. handle_goal_analysis passes its live (still-open) reporter
through instead of finishing it early; the helper adds the discovery steps
onto that SAME reporter via add_steps() and is the one that finish()es it.
handle_initial_plan (the continue_adjusting/retry_after_revert loop-back,
which has no reporter of its own -- a separate CAS commit/operation) still
gets progress=None and the helper builds a fresh one, unchanged.
Added test_submitting_requirements_progress_is_one_operation_with_monotonic_
revisions: drives the real Runner with submit_requirements, captures every
emitted ProgressEventData, and asserts a single operation_id with strictly
increasing, non-repeating revisions across all four progress steps.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Code review finding: the plan card's version_tag was renumbered v2 -> v1
in an earlier commit, but handle_resource_recommendation's own reply_text
still read "Plan v2 ready for approval." -- a card that says v1 next to
prose that says v2 is worse than leaving both at v2, since it's exactly
the user-visible inconsistency the renumber exists to eliminate.
Updated the reply_text to "Plan v1 ready for approval." and its matching
entry in the strings.py literal catalog, so test_catalog_covers_handler_
literals keeps passing for the right reason (a registered v1 string, not
a stale v2 one). Grepped the whole of core/dify_builder/ for any other
quoted v2/v2.1 string this renumber might have missed -- this was the
only one.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Code review finding: build.initial_plan was left in _WAITING with zero
_ACTIONS_FOR entries but a handler still gated on find_resources. Since a
waiting state settles the runner's advance loop (is_waiting(next_state) ->
settled), continue_adjusting from build.review landed a session there with
no button the FE could render and no action the handler would accept --
the loop-back could never advance.
Reclassify build.initial_plan as working (state.py _WORKING, not _WAITING):
it is now a genuine pass-through step, matching build.test_and_repair /
build.publish / build.governance_feedback. handle_initial_plan drops its
find_resources gate and runs resource discovery unconditionally on entry;
the runner drives it with the action already consumed and falls straight
through to build.resource_recommendation within the same advance() call.
Removed the now-stale BUILD_INITIAL_PLAN entry from service.py's
_BACKEND_ACTIONS_FOR (no action to gate on any more) and the compensating
exemption it required in test_every_backend_waiting_action_has_a_ui_path
(the invariant now holds with no special case).
Added a state-classification test (test_build_initial_plan_is_working_not_
waiting) and an end-to-end regression driving the Runner from build.review
through continue_adjusting with no find_resources action ever sent
(test_continue_adjusting_reaches_resources_without_find_resources_action),
which is the scenario this fix exists to unwedge. Fixed the two existing
idempotency flow tests that asserted the old (broken) two-step loop-back.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
handle_capability_check now advances a session that already carries a goal
(fc.goal_text set at creation) on ANY turn, not only send_goal -- the
composer already carried the goal in, so requiring a further send_goal
click was a second decision-free gate. A goal-less (create-from-blank)
session still waits for send_goal to supply one; that action id stays in
_ACTIONS_FOR for exactly that case.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
With build.initial_plan's plan card gone (previous commit), the plan card
emitted by handle_resource_recommendation on confirm_resources is now the
FIRST and only plan card a build shows -- so it becomes v1 instead of v2.
The build-complete plan card in handle_plan_approval follows suit,
v2.1 -> v1.1. A build no longer displays "the same plan twice under two
version numbers".
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
submit_requirements now tail-calls a shared _discover_and_offer_resources
helper straight into build.resource_recommendation, instead of stopping at
build.initial_plan to show a plan card the user must click through with no
real decision to make. The resource-discovery body (progress reporting,
discover_resources, ResourceSelectCard, empty-options notice, assistant
turn) is extracted verbatim into that helper so the straight-through path
and the continue_adjusting/retry_after_revert loop-back (which still
re-enters at build.initial_plan and still requires find_resources) share
one implementation instead of drifting apart.
build.initial_plan survives as the loop-back target but now offers no UI
action (_ACTIONS_FOR entry removed); its handler still accepts
find_resources at the backend for that loop-back.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The resource-recommendation step made the user pick a "conflict
policy" that never decided anything. Remove it end to end: the
ConflictPolicyOption card option, ResourceSelectCard's
conflict_policy_options field, the third bind_resources() parameter
across the port/placeholder/LLM-agent implementations, and the dead
conflict_policy field on the (unused) ResourcesPayload contract type.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The main merge added Azerbaijani (#42291) as a console locale. The naming
fallback keys its "New app" stem by console locale, so a new locale without a
stem silently falls back to English; the catalog-completeness test caught it on
rebase, which is what that test exists for.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
discover_resources initialised its selection to the entire tenant inventory and
only replaced it when the model returned a non-empty pick, so three paths -- no
model, a model that picked nothing, a failed call -- recommended everything. On
a workspace with 57 resources that is not merely noisy: the client pre-checks
every recommendation and submits them all by default, and bind_resources then
appends all 57 labels to the last plan item, which is the text fed to the graph
generator.
Recommending nothing is the honest answer when there is no signal. The card is
still emitted so the confirm gate keeps its active interaction and a later pass
cannot inherit a stale one, and a notice says why rather than leaving a blank
card. The conflict-policy control no longer renders over an empty list.
The test that should have caught this used a one-resource catalog, where "all"
and "none" are indistinguishable; it now uses 57.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Spec N4 has the build-complete card headline read "<App name> is ready", with
the annotation 名字只在回复句里念一次；记录卡上不出现 -- said once, in that
sentence, and never repeated on the completion receipt. We said it nowhere: the
card was titled "Build plan" and the engine had no app name to say.
DifyBuilderContext now carries app_name, seeded at session creation through a
get_app_name_fn seam alongside the existing revision/authorize ones. Env.rename_app
returns the name the database actually took rather than None, so the refine
records what landed instead of what it proposed -- the service normalizes after
the engine hands off, and the two can differ.
The headline is interpolated, so it gets a strings.py template or it would
survive localization untranslated. That pattern matches almost anything ending
in "is ready", so it sits last and every more specific template gets first
refusal.
The receipt already omitted the name; there is now a test pinning that.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Two App Builder spec changes that share the Builder session contract.
Naming (spec N1-N3): an app created from the homepage prompt is no longer named
by the user. core/dify_builder/naming.py cuts the prompt's opening clause at
create time -- instant and infallible, since it runs inside POST /apps -- and
CreateAppPayload.name becomes optional alongside a new prompt field. The Builder
then refines that name once during goal analysis, where a model and the detected
reply language are already in hand, so the judgement calls that are
English-shaped in pure Python (dropping an imperative lead-in, spotting a
contentless prompt) work in any language. Plan approval freezes the name.
Card options: SessionView gains a Decision carrying the gate's choice as options
inside the card plus a fixed confirm/cancel pair, replacing a button row whose
shape changed at every state. Option ids are the old action ids untouched, so
resolve_action_kind and the per-state legality check are unchanged, and
SessionView.actions keeps being populated -- the deployed web client goes on
working until it reads decision instead.
The regenerated console OpenAPI doc also picks up ErrorCard.diagnostics, missed
when cc9ca8b1dd landed.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
api pods lose their logs on restart, so a failed build's real cause
("Workflow generator: structural validation failed: ...") could only be read
from a pod log that may already be gone. Session 01a08fd0 hit exactly that.
Carry the generator's own diagnostics back with the result instead:
BuildNodesResult and ErrorCard gain a ``diagnostics`` list, and build_nodes
records one entry per failed generation attempt -- initial AND the corrective
retry, so an error that changes between attempts stays visible -- plus the
all-rejected and exception paths.
Each entry holds a server-side UTC ``at`` (so the surviving pod-log window can
be searched around it), ``source``, ``attempt``, the generator's ``message``
(the same text the server logs), its ``codes``, and the full structured
``errors`` including ``node_id``. That is strictly more than the log line
carries: for an UNRESOLVED_REFERENCE the export now names the offending node.
The list rides in the ErrorCard's item payload, which is what the streamed
conversation item -- and therefore the exported debug log -- preserves. It is
not rendered in the UI. Retries that eventually succeed keep their breadcrumbs.
Deliberately not mirroring the "structural validation failed" prefix: build.py
cannot tell structural failures from the rest without duplicating the
generator's code taxonomy, which would go stale.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
When build-generate-graph failed at plan-approval, the error card always
showed one hardcoded generic message regardless of the actual cause
(UNRESOLVED_REFERENCE, non-object JSON, credit_balance_exhausted, ...).
Root cause: build_nodes() returned only list[MutationIntent]; on failure it
returned [], so the reason was logged internally but never reached the
handler, which had nothing to show but a fallback string.
Thread the reason out: build_nodes now returns BuildNodesResult{intents,
error}. _generation_error_text() extracts the best reason (top-level error
-> joined errors[].detail/message/code -> generic fallback), and every
failure path populates .error (generator error, all-intents-rejected, and
the except path via str(exc) so provider errors surface verbatim).
handle_plan_approval builds the ErrorCard body from build_result.error when
present, keeping the generic sentence only as a genuine fallback.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
A verify/affected-path run that fails because the workflow references a model
that isn't configured/available (ModelNotExistError, "Model X does not exist",
provider/credentials errors) was routed into the config-repair path -> diagnose
+ propose_repair kept proposing graph mutations (if-else / check nodes) that
can't fix a missing model, thrashing across rounds.
Add model_config_error_text() (classifier parallel to is_input_failure; pairs an
existence/credential signal with a model/provider/credential token so unrelated
"<node> does not exist" faults aren't swallowed). In both build and edit failure
branches, when it matches, surface a clear "model not configured" diagnosis with
NO staged repair and route to the await-repair gate: the user configures the
model (global update_model) or changes it, then re-runs. Catalog the two new
user-facing strings so the reply-language layer localizes them.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Build wrote the Builder's session/cognition model (e.g. deepseek) into every
generated node's model block, ignoring the model the user picked at resource
confirmation (e.g. gpt). _ground always used the generation model, and the
selected model resource only reached the plan as label text (bind_resources) —
so a workflow got a model with no runtime credentials -> ModelNotExistError ->
instant test failure.
Thread the selected resource_ids from resource_selection through
agent.build_nodes into build.build_nodes, resolve the selected MODEL resource
(id is `{provider}/{name}`) via _selected_workflow_model, and ground node model
blocks to it — falling back to the session/generator model when the user
selected no model. The generator still runs on the session model (cognition);
only the built workflow's runtime model follows the user's choice.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Follow-up to the reply-language feature. The update_model action commits its
"Model changed to <name>" notice directly via compare_and_advance, bypassing
Runner._commit and thus the Env.localize_items hook, so that one notice stayed
English. Localize it in the service (when the session has a detected
reply_language) with a "Model changed to {name}" catalog template that
translates the frame and re-inserts the model name verbatim.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Follow-up to the reply-language feature. `_model_or_none` was private to
LlmBuilderAgent, so the advance-task wiring reached it via a fragile
`getattr(agent, "_model_or_none", lambda: None)`. Make it part of the
DifyBuilderAgent protocol (typed `object | None` to keep the pure port free of
any model-runtime import) and implement it on every conforming agent
(LlmBuilderAgent renames the private method public; PlaceholderAgent and the
test doubles return None). The Localizer wiring now uses `agent.model_or_none`
directly. Also drops the useless-return ruff nit in the wiring test.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Final-review fix wave for the "reply in the user's input language" feature:
- serde.py: context_from_dict omitted reply_language from the explicit field
allowlist, so it round-tripped to "" on every read despite context_to_dict
(asdict) serializing it -- the localization feature silently no-op'd after
the first persisted write. Added it to the constructor call; TDD'd with a
failing-then-passing round-trip test in test_serde.py.
- localize.py: Localizer._cache was per-instance, but a fresh Localizer is
built per advance-task invocation, so the static string catalog was
re-translated every turn instead of once per language. Moved the cache to a
module-level _TRANSLATION_CACHE dict (safe to share: keys are
tenant/session-independent catalog-string+language pairs); added an autouse
fixture in test_localize.py to clear it between tests for isolation.
- localize.py: detect_language and _fill_cache called self._model_provider()
outside their try/except, violating the Env callback contract that these
must never raise. Moved both calls inside their try/except so a raising
provider degrades to the existing safe fallback instead of propagating into
advance/_commit.
- strings.py: documented that Template.translate_fields is advisory only --
the Localizer re-inserts all captured groups verbatim and does not consult
it. No behavior change.
uv run --project api pytest tests/unit_tests/core/dify_builder tests/unit_tests/services/dify_builder -q
-> 722 passed.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The build/edit test handlers wrapped run_draft in a bare, non-logging
`except Exception` that turned any launch-time failure into a blank failed
run (dify_run_id="", per_node=[], no error). Diagnose then had nothing to
act on and the repair loop ran blind — the prod symptom where a stale test
input (ValueError "<var> is required in input form") produced an
undiagnosable await_repair loop.
Now the launch error is logged, captured, and persisted so diagnose/routing
can act on it:
- Run.error field + dify_builder_runs.error column (migration a9cc8d552db4)
- handlers_build/edit: logger.exception + launch_error_text(exc) -> Run.error
- is_input_failure() also inspects Run.error (+ "in input form" signal), so a
stale-input launch failure routes to the testdata gate, not blind repair
- diagnose/_degraded_diagnosis surface the launch error when no node executed
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Render change sets directly in plan-style cards with affected node names,
IDs, and change details. Capture node metadata for proposed and applied
changes and persist it with conversation history.
Remove the view_changes action and expand/collapse state. Update generated
contracts, translations, and regression coverage.
Validation: 112 frontend tests and 742 backend unit tests passed.
A build for a workflow app whose goal reads like a chatbot produced an empty
canvas while the assistant reported "Workflow built on the canvas.": the plan
was chatbot-shaped, build_nodes fed it to the generator (mode="workflow"), the
LLM emitted a chatflow graph (answer node / no end node), the generator
rejected it as MISSING_TERMINAL -- a class it does NOT retry -- and build_nodes
swallowed the error into []. handle_plan_approval then treated [] as a
successful build: it deleted the placeholder start and advanced to
build.execution, leaving nothing on the canvas.
Two parts:
1. build_nodes now prepends an explicit workflow-topology directive (one
start + >=1 end node, no answer nodes) to the generator instruction, and
retries ONCE on an error/empty result with the specific error fed back as
a corrective nudge -- covering the terminal-node failure the shared
generator skips.
2. handle_plan_approval refuses to fake success: when build_nodes yields zero
create_node intents it surfaces an honest error and stays in
build.plan_approval (retryable) without deleting the placeholder, instead
of emptying the canvas and claiming a build. A loop-back re-approve still
returns the fixed create intents (only filtered as already-present), so
zero create intents unambiguously means a genuine generation failure.
Adds regression tests for both. Note: part 1 improves LLM reliability
(verifiable live); part 2 is the deterministic guarantee against the
false-success empty canvas.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
uv run --project selects the venv but doesn't chdir, so invoking
gen-dify-builder-contract from packages/contracts (as autofix.yml does)
raised ModuleNotFoundError: No module named 'core'. Switch to
--directory so uv chdirs into api/ before running the module. Also
update two contract_gen.py docstrings that still pointed at the old
web/app/components/dify-builder/contract/types.ts output path.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
It was stubbed to [] in LlmBuilderAgent, canned in PlaceholderAgent, and never
called by any handler — the Build failure path reuses Fix cognition (diagnose +
propose_repair). Removed from the DifyBuilderAgent Protocol, both implementations,
and all test doubles.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Final-review fix wave for the testdata-gate + start-selector slice:
- I1 (Important): is_input_failure's signal list included the bare
"required" (and generic "variable not found"), which also fire on
config/runtime faults unrelated to test inputs -- misrouting those
failures to the *_AWAIT_TESTDATA gate, where the diagnosed auto-repair
is never offered and re-running just loops at the gate. Narrowed
_INPUT_FAILURE_SIGNALS to ("file variable", "not provided", "missing
input"), favoring precision per the spec's ambiguous-failure ->
config-repair safe default. The real file-input E2E error ("File
variable not found for selector: [...]") still matches via "file
variable".
- M2 (Minor, latent): handle_plan_approval's from-scratch delete-then-
create-filter path could drop a generator create_node/connect that
reuses a just-deleted placeholder start's id, since _already_present
compared against the PRE-delete existing_node_ids/existing_edges --
delete with no re-create, silently vanishing the node. Deleted ids are
now excluded from that comparison set; the loop-back path (no deletes)
is unaffected.
- Cleanups: state.py's Build/Edit state-count comments (14->15, 9->10,
verified against the actual enum members), FormCard's docstring now
lists the "testdata" variant, and handle_plan_approval binds
current_graph's nodes to one local instead of calling .get() 3x and
documents the delete-placeholder branch.
Tests: extended test_is_input_failure_matches_input_signals's sibling
with a config "required" case (red before the signal-list fix, green
after), and added a plan_approval test where the generator's create_node
reuses the deleted placeholder start's id (red before the id-exclusion
fix -- a dangling connect ValueError -- green after).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Wu Tianwei
Charles YaoandClaude Opus 5
twwu