feat(workflow): surface subgraph-interior nodes and their mode in ls-nodes - #845
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…nodes `workflow ls-nodes` iterated only `workflow["nodes"]` — the top level — where a subgraph instance is a single opaque node. The nodes it actually executes live under `definitions.subgraphs[].nodes`, and `workflow_to_api` expands them and then drops any that are muted/bypassed, so the graph ran without a node and no reader of ls-nodes could tell. Emit them under a NEW sibling key `data.subgraph_nodes[]` rather than appending to `data.nodes[]`: consumers render every `nodes[]` entry verbatim and pin that listing, and `count` keeps its top-level-only meaning. Each interior row carries path/instance/id/type/title plus `mode` only when the node is disabled, matching the top-level label-only-when-set convention. Paths use the same `<instance>/<interior>` addressing as `workflow slots`, so they compose directly into a slot address. The walk respects cql.engine's `_MAX_SUBGRAPH_DEPTH` and additionally refuses to re-enter a definition already open on the current path, so a corrupt document whose definition reaches itself while branching cannot cost branches**32 rows.
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September 3, 2026 16:43
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ChangesSubgraph node listing
Sequence Diagram(s)sequenceDiagram
participant CLI
participant SubgraphTraversal
participant WorkflowDefinitions
participant OutputRenderer
CLI->>SubgraphTraversal: list top-level and interior nodes
SubgraphTraversal->>WorkflowDefinitions: resolve live nested definitions
WorkflowDefinitions-->>SubgraphTraversal: return definition nodes
SubgraphTraversal-->>CLI: return node metadata and truncation status
CLI->>OutputRenderer: render JSON or pretty output
OutputRenderer-->>CLI: display separate node listings
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Inline comments:
In `@comfy_cli/command/workflow_edit.py`:
- Line 591: Validate each definition’s nodes value is a list before iterating,
and validate each node’s properties value is a dictionary before calling get in
the workflow node-processing logic around the loop at line 591. Skip malformed
entries such as nodes: 0 or properties: [] without crashing, and add regression
coverage for both cases.
In `@comfy_cli/schemas/workflow.json`:
- Line 29: Update comfy_cli/schemas/workflow.json lines 29-29 to describe
subgraph_nodes as including interior nodes, including disabled nodes, rather
than claiming every row executes. Update comfy_cli/skills/comfy/SKILL.md lines
395-399 to state that interior rows may be muted or bypassed and do not always
execute, with mode identifying each node’s execution state.
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🔍 Cursor Review — Consolidated panel
Triggered by @mattmillerai.
Found 10 finding(s).
| Severity | Count |
|---|---|
| 🟠 High | 1 |
| 🟡 Medium | 7 |
| 🟢 Low | 2 |
Panel: 5/6 reviewers contributed findings.
Reviewers that did not contribute: claude-opus-5-thinking-max:edge-case (error)
…ew of #845) Six review findings, each reproduced against the branch before fixing. The walk was bounded against CYCLES and LINEAR nesting but not against BRANCHING: 32 distinct definitions each holding two instances of the next repeat no definition on any path and never exceed `_MAX_SUBGRAPH_DEPTH`, yet expand a few-KB file into ~2**32 rows (12 such levels already measured at 8189), all held in memory and then serialized. Add a total row budget and, when it fires, say so — `data.subgraph_truncated` marks the listing incomplete rather than letting a consumer read a short list as a whole graph. `ls-nodes` is the one workflow command with no catalog and no validation gate in front of it, so a corrupt file must still get an envelope. Four shapes raised uncaught exceptions: a definition's `nodes` as a truthy scalar, a truthy non-dict `properties` (a falsy `[]` never reached the bug), an unhashable `mode` — `_MODE_LABELS.get` hashes its argument — and `definitions`/`subgraphs` as scalars, which this new call site fed to cql.engine's `_subgraph_defs_by_id` unscreened. The mode and title guards are factored into `_mode_label`/ `_node_title` and reused by the top-level row builder, which carried the same two hazards. Pretty mode passed workflow-file text to `Table.add_row`, which reads a `str` as Rich MARKUP: an unbalanced `[/]` in a title crashed the render with MarkupError, `[link=...]` rendered a live OSC 8 hyperlink, and control bytes reached the terminal. Route both tables through `sanitize_markup`, matching the contract in tests/comfy_cli/command/test_pretty_print_sanitize.py; it coerces non-strings, so it replaces the bare `str()` calls at exact display parity. Interior paths now join like the slot walker — separator only after a non-empty prefix — so an instance with no `id` yields `9`, not the unresolvable `/9`. Schema: `nodes` no longer declares `"type": "array"`. workflow.json is shared by the whole `workflow` group, and `workflow compose` emits `nodes` as an integer node COUNT, so the new declaration made every compose payload schema-invalid (verified with jsonschema against both payloads). The `items` subschema still constrains the array form. `type`/`title` drop their `["string","null"]` constraint for the same honesty reason: both are copied verbatim from the file, so a corrupt document could make ls-nodes violate its own published contract. Docs no longer claim every interior row executes: the listing deliberately INCLUDES muted and bypassed nodes — that is the point, since workflow_to_api drops them silently — so deciding what runs means checking `mode` on the row and on every ancestor along its `path`. Not fixed here, deferred with rationale on the threads: cql.engine's `_subgraph_defs_by_id` registers a definition's cosmetic `name` as a fallback key, so a subgraph named after a real node class captures every node of that class. It predates this PR, affects `workflow slots` identically, and mirroring it is what keeps the two commands' addresses byte-identical.
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Inline comments:
In `@comfy_cli/command/workflow_edit.py`:
- Line 651: In the subgraph traversal, move the _MAX_SUBGRAPH_INTERIOR_ROWS
limit check to after the isinstance(n, dict) filter so subgraph_truncated is set
only when a reportable dictionary row would be omitted; preserve the existing
handling for malformed entries.
In `@comfy_cli/schemas/workflow.json`:
- Around line 52-55: Update the subgraph_truncated description in
comfy_cli/schemas/workflow.json (lines 52-55) to state that any listing
exceeding the configured row ceiling may set the flag, without classifying the
workflow as corrupt or hostile. Remove that classification from the
corresponding documentation in comfy_cli/command/workflow_edit.py (lines
556-558) and describe truncation solely as a row-ceiling condition in
comfy_cli/skills/comfy/SKILL.md (lines 404-410).
In `@tests/comfy_cli/command/test_ls_nodes_mode.py`:
- Line 374: Update the fixture containing set_renderer(r) to save the existing
global renderer before replacing it, yield to the test, then restore the saved
renderer during teardown so later tests do not retain the fixture’s StringIO
renderer.
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The helper's contract is the assertion inside it — a MarkupError surfaces as `result.exception`, not a non-zero exit — and no caller used the value, which was annotated `str` while returning a `Result`.
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🤖 The reviews loop filed Linear follow-up ticket(s) for review thread(s) deferred as out of scope for this PR:
The following carry
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…ropped CodeRabbit review of #845, two findings. The row-budget check ran BEFORE the `isinstance(n, dict)` shape filter, so a definition whose tail is junk we drop either way — `nodes: [ok, ok, 7, "x"]` at the ceiling — set `subgraph_truncated` even though nothing reportable was omitted. `subgraph_truncated` is a promise that a listable row is missing and `subgraph_count` is a floor; a consumer that re-reads the graph on that signal was being sent back for junk. Move the check below the filter. Its companion case (a real third node IS dropped) is pinned too, so moving the test cannot quietly disarm it. Second: the ceiling was documented in three places as reachable only from a "corrupt or hostile" definition graph. That is a verdict on the file the flag cannot support — 10k reachable interior rows is an OUTPUT ceiling, and a legitimately huge workflow hits it exactly as a branching-blowup one does. Schema, SKILL.md and the constant's comment now describe the condition (the listing exceeded the ceiling, so it is short) without classifying the input. Also: SKILL.md now tells a reader what to DO on truncation — re-read in smaller pieces — instead of only that the graph was bad.
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🤖 Reviews round on 69da757 — three CodeRabbit threads, two fixed, one declined with evidence. All resolved.
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ELI-5
A ComfyUI "subgraph" is a folder of nodes that shows up in the graph as one box.
comfy workflow ls-nodesonly ever listed the boxes at the top level, so the nodes inside that folder were invisible — including the ones a user had muted or bypassed. Since the API converter expands the folder and then silently drops those muted/bypassed nodes, a reader could see a perfectly healthy-looking listing for a graph that runs with a required node missing. This adds a second list,data.subgraph_nodes[], that shows what is inside each folder and which of those nodes are switched off.What changed
ls_nodes_cmditerated onlyworkflow["nodes"]— the top level, where a subgraph instance is a single opaque node whosetypeis its definition UUID. The nodes it actually executes live underdefinitions.subgraphs[].nodes;workflow_to_api._expand_subgraphs(comfy_cli/workflow_to_api.py:122) brings them into the flat node list and the mode filter immediately below (:158-159) drops any with mode 2 (mute) or 4 (bypass). So the graph runs without the node and nothing inls-nodesexplained why._subgraph_interior_rows(workflow)walks each top-level node whosetyperesolves throughcql.engine._subgraph_defs_by_id, recursing into the definition'snodes. Each row is{"path", "instance", "id", "type", "title"}plus"mode"(mute|bypass) only when set — the same label-only-when-non-default convention the top-level rows already use, so a normal node stays one clean row.pathuses the same<instance>/<interior>addressing ascomfy workflow slots(nesting with/, e.g.10/3/7), so it composes directly into a slot address. Verified against the same fixture:ls-nodesemits10/3/8andslotsemits10/3/8.string(see Verified).nodes[]already carries.{workflow, count, nodes, subgraph_nodes, subgraph_count}.countandnodesare byte-identical to before: interiors are a NEW sibling key, never appended tonodes[], because the cloud agent renders everynodes[]entry as a model-visible line and pins that listing.--no-json) output: the existing table is unchanged; a second "subgraph interiors" table is printed below it, and only when there is at least one interior row.comfy_cli/skills/comfy/SKILL.mddocuments the new key and the shared addressing.comfy_cli/schemas/workflow.json— whichdiscovery.py:105already mapscomfy workflow ls-nodesonto — gainssubgraph_nodesandsubgraph_count; it also gainsnodes, which was never described there, since documenting the new key beside an undocumented sibling would be worse than useless to an agent reading the schema.The listing is not an execution plan. It deliberately INCLUDES muted and bypassed interiors — that is the point, since
workflow_to_apidrops them with nothing else to reveal it. Because a nested instance gets a row of its own carrying its mode, deciding what actually executes means checkingmodeon the row and on every ancestor along itspath: a live10/3/7under a muted10/3, or under a disabled top-level10(whose mode is on itsnodes[]row), does not run. The schema description and SKILL.md both say so.Bounding the walk
The walk respects
cql.engine._MAX_SUBGRAPH_DEPTH(32), exactly as the slot walker does, and additionally refuses to re-enter a definition already open on the current path — a definition already open can only be a cycle (ComfyUI cannot author one), while a definition reused on sibling paths is unaffected.Those two bound cycles and linear nesting; neither is a work bound. A branching acyclic definition graph escapes both: 32 distinct definitions that each hold two instances of the next repeat no definition on any path and never exceed the depth cap, yet expand a few-KB file into ~
2**32rows — every one accumulated in memory, then serialized to JSON and rendered. Measured on this branch before the fix: 12 such levels already produce 8189 rows.So the walk also carries a total row budget,
_MAX_SUBGRAPH_INTERIOR_ROWS = 10_000, checked before each row is appended and unwound through the whole traversal. Real graphs are nowhere near it — the largest subgraph-heavy workflows run to low hundreds of interior nodes — but it is an OUTPUT ceiling, not a verdict on the file: a legitimately huge graph reaches it exactly as a branching-blowup one does, and the flag claims only that the listing is short. Truncation is flagged, not silent:data.subgraph_truncated: true(label-only-when-set, likemode) marks the listing incomplete andsubgraph_counta floor, plus a warning line in pretty mode. A consumer must not be able to read a short list as a whole graph.Reading an arbitrary file
ls-nodesis the one workflow command with no catalog and no validation gate in front of it — an agent points it at whatever JSON it was handed — so a corrupt document must still get an error envelope, never a traceback. Every container is shape-checked before use: a definition'snodesas a truthy scalar (survivesor []), a truthy non-dictproperties(survivesor {}), an unhashablemode(_MODE_LABELS.gethashes its argument), anddefinitions/subgraphsas scalars, which this new call site would otherwise hand unscreened tocql.engine._subgraph_defs_by_id. Themodeandtitleguards are factored into_mode_label/_node_titleand reused by the top-level row builder, which carried the same two hazards.Pretty mode passes file-sourced text to
Table.add_row, which reads astras Rich markup: an unbalanced[/]in a title crashed the render withMarkupError,[link=...]rendered a live OSC 8 hyperlink, and control bytes reached the terminal. Both tables now route every file-sourced cell throughsanitize_markup, matching the contract intests/comfy_cli/command/test_pretty_print_sanitize.py; it coerces non-strings, so it replaces the barestr()calls at exact display parity. Themodecell is left unsanitized on purpose — it comes from our own_MODE_LABELS, never from the file.Test plan
tests/comfy_cli/command/test_ls_nodes_mode.pygains 23 cases.Behaviour (8): interior mode reported at
10/9;nodes[]/countunchanged by the presence of interiors; nested10/3/7two levels deep reportingbypasswithinstancestill the top-level10; two instances of the same definition emitting10/9and11/9; a workflow with nodefinitionsemittingsubgraph_nodes: []; a self-referencing definition terminating with unique addresses; a 37-deep chain of distinct definitions truncating at exactly_MAX_SUBGRAPH_DEPTH; and malformed input (non-dict nodes, a non-dict subgraph entry, an unhashabletype) skipped rather than raising.Robustness (15, added across the review rounds — each verified to fail against the pre-fix walker): the five malformed shapes above emitting an envelope rather than a traceback; an unhashable
modeon a top-level node; an instance with noidyielding9rather than the unresolvable/9; the branching definition graph bounded at the row budget and flagged; an ordinary workflow carrying no truncation key; and five pretty-mode cases — OSC 8 / OSC 0 / CSI 2J inertness for both tables, plus unbalanced markup in interiortype,titleandid(thepathcell). The latest round adds the two that pin the truncation flag itself: the row ceiling reached with a malformed tail ([ok, ok, 7, "x"]at a patched ceiling of 2) NOT flagging truncation, and its companion — a real third node dropped — still flagging it, so moving the budget check cannot quietly disarm it.Residual
services/agent/internal/loop/subgraph_addressing_test.goanddigestLsNodeslive in the cloud repo, which is not reachable from this checkout — they are unexercised artifacts. This change is designed so that test cannot break (nodes[]andcountare unchanged, asserted bytest_top_level_nodes_unchanged_by_interiors), but that is an argument, not a measurement. A consumer-side change that readssubgraph_nodes[]and bumps its pin to the SHA this merges as is still outstanding.workflow set-modework is wrong, in two files. Open PR feat(workflow): add node mode overrides #740 (feat(workflow): add node mode overrides) touchescomfy_cli/schemas/workflow.jsonandcomfy_cli/skills/comfy/SKILL.md, both of which this PR also edits. There is no overlap incomfy_cli/command/workflow_edit.py, so the implementations are independent — but whichever of the two merges second will need a textual conflict resolution in the schema and the skill doc. Writing modes remains out of scope here; this PR is read-only.subgraph_truncatedis set when the row budget fires, not when a branch is cut at_MAX_SUBGRAPH_DEPTH, so a caller still cannot distinguish "this subgraph has no deeper nesting" from "we stopped at depth 32". The pre-existing slot walker has the same property. Closing it means threading a signal out of the depth cut too, in both walkers; not attempted here.cql.engine._subgraph_defs_by_idregisters a definition's cosmeticnameas a fallback key, so a subgraph named after a real node class ("name": "KSampler") captures every ordinary node of that class and sprouts fabricated interior rows — reproduced directly. It predates this PR and affectscomfy workflow slotsidentically (fabricated slot addresses from the same lookup). Fixing it only inls-nodeswould break the property this PR is built on — that its addresses are byte-identical toslots' — by dropping legacy name-typed templates from one command and not the other, so it is deferred to a follow-up against the shared helper. The same helper's unscreeneddefinitions/subgraphshandling is deferred with it; this PR guards its own call site so it ships no regression.comfy workflow slotsstill carries no mode information. It already enumerates interior widgets at the same addresses, so a caller readingslotsalone still cannot tell that the node behind an address is muted; they have to cross-referencels-nodes. Sweep of the repo's other workflow read surfaces for the same gap:workflow printalready labels interior nodes (# 8 mode=mute, confirmed by running it on a fixture with an interior node muted), andworkflow notesis note-scoped and not affected. So of the read surfaces that enumerate nodes,ls-nodeswas the one gap and it is closed;slotsis the one remaining surface where an interior mode is invisible, and it is left unchanged.Provenance
ruff check .: all checks passed.ruff format .: 1 file reformatted, 445 unchanged. Full unit suite viauv run pytest tests/ --ignore=tests/e2e: 7404 passed, 19 skipped, 1 failed — the failure istests/comfy_cli/test_http.py::test_an_unloadable_supplement_falls_through_to_the_platform_roots, a system-CA-count assertion that fails identically on this branch's unmodified HEAD (confirmed by stashing the diff) and is green in CI. Latest review round (69da757):test_malformed_tail_at_the_row_ceiling_does_not_flag_truncationconfirmed to FAIL against the pre-fix walker (subgraph_truncatedpresent with a junk tail) and pass after; its companiontest_a_dropped_row_at_the_ceiling_still_flags_truncationpasses on both sides, pinning that moving the budget check did not disarm it. Schema re-validated as JSON after the description edit. The renderer-fixture finding was falsified empirically rather than argued: a two-test probe (A installs aStringIOpretty renderer exactly as the fixture does, B assertsget_renderer().pretty_streamis not aStringIO) passes, so the autouse_reset_renderer_singletonintests/comfy_cli/conftest.pyalready closes that leak and no save/restore was added. Earlier rounds: all 13 prior review-round tests confirmed to fail against the pre-fixworkflow_edit.py; schema contract checked withjsonschemaagainst two real payload shapes (aworkflow composepayload with"nodes": 12is INVALID against the pre-review schema and valid after); branching blow-up measured pre-fix at 8189 rows for 12 levels, post-fix bounded at 10000 withsubgraph_truncated: true; live CLI ontests/comfy_cli/fixtures/subgraph_template_ui.jsongave 3 top-level rows, 16 interior rows,10/3/8matching the10/3/8.stringaddressworkflow slotsemits for the same file, and with interiors muted/bypassed reported10/3/8 mute,10/8 bypass,19/8 bypasswhilenodes[]stayed mode-free.nodesadded to the schema next tosubgraph_nodes, the total row budget with itssubgraph_truncatedsignal, the shape guards, andsanitize_markupon both pretty tables. From the latest review round: the budget check moved below the shape filter so truncation is flagged only when a listable row is dropped, and the "corrupt or hostile" classification of a truncated listing removed from all three sites (schema, constant comment, SKILL.md) — the ceiling is an output bound and cannot support a verdict on the input. One finding was declined with reasoning on its thread (the pretty-renderer fixture, already covered by the autouse conftest reset); two earlier findings were deferred to tracked follow-ups against the sharedcql.enginehelper, with the reasoning on their resolved threads.