Commit Graph

5 Commits

Author SHA1 Message Date
gsxdsm
744c01f7fb FN-8657: extract move-target literal counter
Make the move-target literal ratchet directly testable without changing its scan behavior.

- Export the AST-based legacy destination counter for fixture testing
- Cover literal destinations, private moves, and deliberate exemptions

Files changed:
 .../__tests__/check-move-target-literals.test.mjs  | 30 ++++++++-
 scripts/check-move-target-literals.mjs             | 77 +++++++++-------------
 2 files changed, 60 insertions(+), 47 deletions(-)

Fusion-Task-Id: FN-8657

Fusion-Task-Lineage: 5b1f9ac4-6026-4baf-b42c-f41ab0562679

Co-authored-by: Fusion (runfusion.ai) <noreply@runfusion.ai>
2026-07-31 21:34:25 -07:00
gsxdsm
1660b136d7 fix(gate): the move-target ratchet could not see a file until it was committed (#3256)
## What

**#3254 fixed this blind spot in the census. It was still present
here.** Found by re-running that probe against the other four lifecycle
gates. No product change.

`git ls-files` lists **tracked** files only, so a brand-new file
containing `moveTask(id, "done")` scored **0** locally and flipped the
ratchet the moment it was staged. The author sees a green gate, commits,
and CI disagrees — the worst possible feedback order.

It is also the exact shape that made my own first census probe measure
nothing while reading as "no gap", which is how the class was found in
the first place.

Fixed the way #3254 did — `--cached --others --exclude-standard` — plus
a dedupe, because a path can appear under **both** flags in some index
states and would otherwise count twice against a baseline expecting one.

## Measured

```
untracked probe:            0 detected before  ->  1 after
--strict on a clean tree:   green before and after   (no false positives)
lint clean; fnxc-future-dates: none added
```

## The other gates, measured in the same pass

| gate | sees untracked files? |
|---|---|
| `lifecycle-column-census` | ✅ since #3254 |
| `check-sql-column-literals` | ✅ already |
| `check-inert-sync-lane-conversions` | ✅ already — walks the filesystem
with `readdirSync` |
| `check-lane-wiring` | n/a — does not use `ls-files` |
| `check-move-target-literals` | ❌ → **fixed here** |

This was the last gate with the gap. All five now agree about what a
file is.

## Correction to #3250

I wrote there that this script *"has no export seam and runs at
import"*, and used that to justify shipping without a unit test. **It
does have a seam** — an `isEntryPoint` guard — so a test could import it
without triggering the scan.

That does not change #3250's conclusion (its revert-proof measurement
stands on its own), but the stated reason was wrong, and it was wrong in
the direction that excused less testing. Correcting it here rather than
leaving it as precedent.


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Bug Fixes**
* Local source-file checks now include newly created and untracked
files.
* Duplicate file entries are removed when files appear in multiple Git
states.
  * Existing tracked-file and CI scanning behavior remains unchanged.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-07-31 15:45:36 -07:00
gsxdsm
b7c7977c09 fix(gate): catch cast move-targets, keep ?? fallbacks unflagged, and pin all of it (#3253)
Follow-up to #3250. Two changes, and **one of them is a decision not to
widen** — which is the part I would review first.

## Caught now: the cast form

```ts
moveTask(id, "done" as ColumnId)   // was invisible
```

Columns are typed `ColumnId`, so a cast is the **natural** spelling
wherever the parameter is nominally typed. The gate was weakest exactly
where this codebase is most likely to write a literal.
Cast-wrapping-a-ternary is caught too.

## Deliberately NOT caught: `??` / `||` / `&&`

I recommended these arms on #3250. **I was wrong, and the tree proved
it.** Adding them flagged:

```ts
moveTask(id, (await resolveTaskLifecycleColumns(store, id))?.complete ?? "done", ...)
```

That is the fail-soft idiom this entire programme rests on — resolve,
fall back to the legacy id when the workflow is unreadable, exactly as
the role helpers degrade. It is the **correct** pattern.

A gate that demands a `DELIBERATE-LITERAL` marker on every safe fallback
teaches people to add markers by habit, and a habitual marker is how the
next real literal walks straight through. So: a legacy id **after** `??`
is the safe shape and stays unflagged; a legacy id as the **whole**
destination is caught. Backed out, with the reasoning at the site so
nobody re-adds it.

If you disagree, the counter-argument is that a fallback could mask a
lane that should have resolved — but that wants its own report, not this
ratchet's exit code.

## Pinned — the gate had no tests at all

Fifth spelling missed across three rounds, and every earlier probe was
run by hand and thrown away, because the scanner executed on import.
Commit 1 makes it importable (behaviour-preserving, `--strict`
identical); commit 2 adds **12 tests in both directions**:

| catches | does not catch |
|---|---|
| direct, backtick, ternary, nested ternary, parenthesised, cast,
cast-over-ternary | `??` fallback, `\|\|` fallback, resolved
destination, substituted template |

The negatives are load-bearing, not padding — four of them encode false
positives that either shipped or arrived while widening.

## The root cause, recorded in the test header

**The destination is a POSITION; every fix so far has enumerated NODE
KINDS.** A kind list is something the language extends faster than we
guess — I started that pattern myself in #3246 by requiring
`arguments[1]` to *be* a literal. The durable defence is that each shape
someone finds stays found.

## Measured

| check | result |
|---|---|
| real tree | **0** targets, `--strict` exit 0 (the `??` false positive
is gone) |
| gate tests | **12 pass / 0 fail** |
| anti-vacuity | removing the cast arm **fails** the suite; restoring
passes |
| eslint / `check-fnxc-future-dates` | clean / 0 |

One test corrected itself during writing: I asserted `"drafting"`
extracts to `[]`, and it returns `["drafting"]` — legacy filtering is
the caller's job. Kept as a test of that split, since folding the
vocabulary into the extractor would force every future shape to thread
the legacy list.
2026-07-31 15:35:08 -07:00
gsxdsm
0b30eb4146 fix(gate): detect ternary move-target literals, which #3246's ratchet could not see (#3250)
## What

#3246 landed a gate holding `moveTask` legacy-literal destinations at
zero, printing **"POPULATION EMPTY … keep it empty."** I probed that
claim the way #3247 probed the census. It held for two spellings and not
a third.

| form | before | after |
|---|---|---|
| `moveTask(id, "done")` | ✅ | ✅ |
| `` moveTask(id, `todo`) `` | ✅ | ✅ |
| `moveTask(id, ok ? "done" : "in-review")` | ❌ **invisible** | ✅ |

The check required `arguments[1]` to *be* a literal. A ternary over two
lanes is a natural way to write exactly the destination this gate exists
to prevent — and per the gate's own header, a wrong target **throws** at
runtime rather than no-opping.

## Measured

```
real repo, before and after:  0 targets, --strict passes   (no false positives)
ternary probe:                0 on HEAD~1  ->  1 after
direct + backtick forms:      unchanged
DELIBERATE-LITERAL marker:    still suppresses (canonical placement)
lint clean; fnxc-future-dates: none added
```

## Two scoping decisions, both probed rather than assumed

**Not descending into `??` / `||`.** `moveTask(id, lanes.complete ??
"done")` is the documented degraded arm this program writes deliberately
— the shape the lifecycle census classifies as `traitFallback` rather
than backlog. Counting it would report correct code as debt. Measured at
0 both before and after.

**`const t = "archived"; moveTask(id, t)` is still undetected**, and the
comment says so at the site. Resolving it needs symbol/dataflow analysis
rather than a shape test, which is a different tool than this file is.
Flagged so the next person extends deliberately instead of assuming
coverage.

## No unit test, and why

The script has no export seam and executes at import, so testing it
means extracting one — a refactor of a one-commit-old file, which
belongs in its own change rather than folded into a behaviour fix. The
revert-proof is the measurement above: the ternary probe reads 0 against
`HEAD~1` and 1 against this commit.

## Note to #3246's author

I raised these gaps on your PR first and offered to send this rather
than assume. Two traps that cost me time on the census extension, in
case you take it further:

- **A count-unless-excluded rule backfires on this vocabulary.** My
first census extension counted `switch (x)` unless the receiver looked
like a role/status and reported 7 guards — 6 were `switch (eventName)` /
`switch (state)` / `switch (event)`, since event enums routinely carry
`case "done"`. Requiring a *positive* column signal was the fix.
- **Verify the probe file is git-tracked.** My first probe measured
nothing because the scanner enumerates tracked files; the scanned-file
count stayed flat and I nearly read that as "no gap."
2026-07-31 15:19:11 -07:00
gsxdsm
4e2f52ce8f feat(gate): ratchet move-target literals at zero — #3150's population had nothing holding it (#3246)
Closes the gap I flagged when re-measuring #3150: that population is at
**0**, and nothing was holding it there.

## Why this surface has no gate today

The lifecycle census parses **comparisons**. A move destination is a
call **argument**:

```ts
await store.moveTask(id, "in-review");   // never counted by anything
```

#3150 measured 31 of these across four files. They are now 0 — I
verified that on current main before writing this — but the comparison
backlog drifted **787 → 854** during the window its own ratchet was
unwired, and this population never had one.

## The failure mode is louder than the guards'

A wrong lane **guard** silently answers "no". A wrong move **target** is
rejected by `moveTaskInternal` with `TransitionRejectionError:
unknown-column` — so on a board that renamed its review lane, every task
finishing implementation **threw** instead of reaching review. Loud at
runtime, invisible to any test on the default board.

## AST, not grep — and that is measured, not stylistic

| scan | result |
|---|---|
| comment-naive grep of `self-healing.ts` | 1 hit — **JSDoc prose**: `*
could call moveTask("in-review")` |
| #3150's own SQL survey by grep | 37 hits against **12** real sites (25
comments) |

Comments are not AST nodes, so that false-positive class cannot occur
here in either direction.

## Controls — all four run, because a gate that only reports 0 proves
nothing

| probe | expected | got |
|---|---|---|
| real `moveTask(id, "in-review")` injected | fail | **exit 1**, names
the file |
| identical call as JSDoc prose | pass | **exit 0** (AST ignores
comments) |
| legacy target + leading `DELIBERATE-LITERAL` | pass | **exit 0**
(marker honored) |
| probe removed | pass | **exit 0** |

The third is the #1411 `recoveryRehome` safe-landing path, where the
legacy id genuinely *is* the target. Marker must be **leading** — the
census already learned that an inline marker attaches to the wrong node
and is silently ignored.

## Ratchet semantics match the census

Fails on a **drop** as well as a rise. A stale allowance is a hole a
re-added target can return through while the gate stays green — exactly
what let the comparison baseline drift.

## Measured

| check | result |
|---|---|
| this gate | scans **1816** files, reports **0** |
| `check:lifecycle-columns` / `check:sql-column-literals` | 0 / 0 |
| `check:fnxc-future-dates` / `check:lane-wiring` | 0 / 0 |
| eslint / `pnpm test:gate` | clean / exit 0 |

Wired into `pr-checks.yml` beside the sibling ratchets, named to match
("Move-target ratchet").

## Scope

Gate only — **no production code touched**, and no conversions in this
PR. The population was already empty; this makes "31 → 0" an invariant
instead of a snapshot, which is the caveat I attached when recommending
#3150 for closure.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Quality Improvements**
  * Added automated validation for task-movement configuration values.
  * Pull request checks now detect unexpected changes in tracked values.
* Added baseline tracking with strict validation to identify both
additions and removals.
  * Added support for explicitly documenting intentional exceptions.
  * Improved reporting for file-discovery and source-reading failures.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-31 14:56:07 -07:00