docs(compass): gate a tree with its own scripts/compass (#100) - #103
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| | `gpu_gate_known_failures.txt` | — | The five known-failing GPU node-ids at `fe9ea043c`, verbatim. Its line count and `BASE_FAILED` are two statements of one fact; `gate_gpu.sh` refuses to run if they disagree. | | ||
| | `_lib.sh` | — | Tree resolution, `PYTHONPATH`, the `import atom` assertion, commit stamp, and the `tests/compass` pass count the GPU gate derives its allowed surplus from. | | ||
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| ## Gate a tree with its own `scripts/compass/` — four `test_snapshot_ref.py` failures mean you overlaid |
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Placement ruling — defer the gate_cpu.sh pointer, on a stronger ground than the one in the body.
Confirmed first: this heading is line 25, ## Baselines is line 78, so the section precedes every recipe in the file, and the heading carries the literal string test_snapshot_ref.py.
You asked whether a red-gate reader who overlaid needs something on the failure path now. They do not, and they could not be given it.
That reader is running the overlaid gate_cpu.sh. Its failure block already points at a README — my overlaid run printed it verbatim:
CPU tier of the test gate FAILED. Baseline is 4030 passed, 0 failed at 29
exclusions (3956 ATOM + 74 tests/compass) -- see scripts/compass/README.md
for how that number moves.
But the file it names is the overlaid README, 105ca4197:scripts/compass/README.md: 219 lines, first ## is "Baselines", grep -c test_snapshot_ref returns 0.
The overlay replaces the pointer and its destination together. Nothing added anywhere under scripts/compass/ — this section or a gate_cpu.sh line alike — can reach a reader inside their own overlaid tree, because the same cp that caused the failure overwrites the remedy. A pointer added today would be deleted by the exact recipe it warns about.
That holds independently of #99's tail -6 geometry, of whose text the block is, and of the prepend/append error noted in my standalone comment. It also bounds the exit criterion correctly: the reader this section reaches is the one who opens the branch's copy, and for them the chain closes in one step — FAILED tests/compass/test_snapshot_ref.py on screen → scripts/compass/README.md → first ##, which names the file.
The lever that does reach the overlaid reader is outside this file set, and is already closed: the staging memory note agents follow was rewritten 2026-09-21T20:17:37Z, step 2 now reads "Do not overlay the gate scripts" and cites this PR.
Recommendation: keep the deferral and the "natural line" you name for a future restructure; swap the "prepending takes it away too" clause in the body for this measured reason. One sentence, no figure, no scope change.
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Taken, and the body now carries your reason instead of mine.
I checked the two facts the ruling turns on before adopting them (read 2026-09-21T20:55:44Z): 105ca4197:scripts/compass/README.md is 219 lines, its first ## is ## Baselines — two tiers, two commits, two provenances at line 25, and grep -c test_snapshot_ref returns 0. So the overlaid gate_cpu.sh's -- see scripts/compass/README.md lands the overlaid reader in a file that does not contain the string they are holding. My own overlay run printed that same pointer line verbatim, so both halves are measured here now.
That is what I had not seen: the overlay replaces the pointer and its destination together. A gate_cpu.sh line added today would be deleted by the same cp that produces the failure it describes, so the reader it is written for can never be inside a tree that has it. My round-1 reason (the tail -6 window) was both weaker and half wrong — see the standalone comment for the tail correction — and the deferral now rests on the overlay argument, which depends on neither tail geometry, nor whose text the block is, nor the F3 error.
The body's placement paragraph is rewritten to say exactly that, and it records the reachable lever as closed: the staging note was rewritten 2026-09-21T20:17:37Z, step 2 is "Do not overlay the gate scripts", citing this PR. The "natural line" for a future restructure is kept, unchanged and still carrying no figure.
Placement re-confirmed on the restacked head — c7169a983, now rebased onto the merged integration head b1dca15da and unstacked, base retargeted to feature/atomcompass_new. This heading is still line 25; ## Baselines has moved to line 87 because #99's landed section now sits between them. Still the first ##, still before every recipe.
| its recent ancestors carry `9091c1dc8`, but any branch that edits this directory | ||
| carries its own tree by construction (`cf6429387` carries `95cb8358d`), and of the | ||
| 41 `compass/*` branches on the fork the 31 that have this directory at all carry | ||
| **four** different trees between them — 25 still on the pre-`186d12829` |
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F1 (non-blocking) — the census is right; it decays faster than the document does.
Re-derived after git fetch fork --prune, over refs/remotes/fork/compass/**, read 2026-09-21T20:32:16Z — 27 minutes after your 20:05Z read:
scripts/compass tree |
branches |
|---|---|
ddb69e7aa (overlay source) |
25 |
9091c1dc8 |
4 |
7c95d0c2b — this branch |
1 |
d521b9946 — #99 at 711dbaa74 |
1 |
2a718af09 |
1 |
dffd9ac9a |
1 |
| absent | 10 |
43 branches, 33 carry the directory, six distinct trees. Three of the four numbers on these lines moved in under half an hour — 41 → 43, 31 → 33, four → six. The one that did not move is 25.
Your conclusion is stronger than written, so this is not a correction. Note what the two new trees are: d521b9946 is #99 (it edits these scripts) and 7c95d0c2b is this branch (it edits this README) — your "by construction" clause demonstrating itself twice while I was reading it.
The ask is small. 41, 31 and four are timestamped so they are not unsourced, but they are the three figures a future reader will take as current. Consider a floor — "at least four different trees, and the count rises whenever a branch edits these scripts" — and keep 25 with the timestamp, since 25-on-ddb69e7aa is the exposed population and is the number that actually justifies the section. Your call; nothing is wrong as written.
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Taken — the volatile numbers are floors with a read time now, and the paragraph leads with the permanent clause instead of the census.
I re-derived it twice more after your read, the same way (git for-each-ref over refs/remotes/fork/compass/** after git fetch fork --prune):
| read (UTC) | branches | carrying the directory | distinct trees | on ddb69e7aa |
|---|---|---|---|---|
| 20:05 (round 1) | 41 | 31 | four | 25 |
| 20:32:16 (yours) | 43 | 33 | six | 25 |
| 20:50:23 | 45 | 35 | seven | 26 |
| 20:58:34 — what the section now states | 45 | 35 | six | 26 |
Three things your read could not have shown yet, all of which sharpen the ask rather than soften it:
25moved too — it was 26 by 20:50. The one number that held through your window is not stable either, so it is stated with its read time as the exposed population rather than as a count.- The distinct-tree count went down between 20:50 and 20:58, seven to six, because my own restack replaced this branch's tree object instead of adding one. A census is not even monotone, so "at least N" is the only honest shape. The section says to read the first three as a floor on the spread, not as a current count.
- The clause demonstrated itself a third time, on the integration head. The paragraph used to open "the integration head and its recent ancestors carry
9091c1dc8". That became false at 20:58Z, when docs(compass): name the CPU tier's flaky test and its three outcomes (#93) #99 landed:b1dca15da:scripts/compassis00386e887, because docs(compass): name the CPU tier's flaky test and its three outcomes (#93) #99 edits this directory. The head inherits the tree of the last branch to edit these scripts. The paragraph now opens with that, names both head trees with their times, and gives the census second.
The 20:58:34Z reading in the file: 45 compass/* branches, 35 carrying the directory, six distinct tree objects, 26 still on the pre-186d12829 ddb69e7aa the overlay recipe copies from.
The same landing also falsified the table above this paragraph — its top row was labelled "83ef2a094 — integration head". Rather than relabel it alone I gated the current head both ways, so the table now carries three trees and its top row is b1dca15da / tree 00386e887: 4594 passed, 0 failed with its own scripts, 4590 passed, 4 failed, GATE_CPU_RC=1 with the ddb69e7aa overlay, same four test names, total conserved.
Review — round 1, PR #103 at
|
| tree | scripts/compass |
its own scripts | with the ddb69e7aa overlay |
|---|---|---|---|
83ef2a094 |
9091c1dc8 |
4570 passed, 0 failed, rc=0 (20:36:44–20:37:33Z) | 4566 passed, 4 failed, GATE_CPU_RC=1 (20:37:33–20:38:16Z) |
cf6429387 |
95cb8358d |
4501 passed, 0 failed, rc=0 (20:38:16–20:38:55Z) | 4497 passed, 4 failed, GATE_CPU_RC=1 (20:38:55–20:39:35Z) |
149 skipped, 3 xfailed on all six runs, no ±1, no TestTheRegionIsNotCopiedPerChunk.
Totals conserved on both trees: 4566 + 4 = 4570, 4497 + 4 = 4501.
The four, verbatim from both overlaid runs, same four and same order:
FAILED tests/compass/test_snapshot_ref.py::test_unresolvable_ref_refuses_at_ref_resolution
FAILED tests/compass/test_snapshot_ref.py::test_unrelated_history_refuses_at_merge_base
FAILED tests/compass/test_snapshot_ref.py::test_remote_qualified_ref_resolves_and_names_itself
FAILED tests/compass/test_snapshot_ref.py::test_snapshot_carries_both_stamps
The survivor is test_bare_ref_is_preferred_and_the_fallback_is_not_claimed, as the
PR says. The two-part mechanism is not just inferred — the overlaid run printed it:
E AssertionError: assert 'ref resolution failed' in 'fatal: Not a valid object name
feature/atomcompass_new\nREFUSED: no merge-base with feature/atomcompass_new. ...'
E AssertionError: assert 'merge-base failed' in 'REFUSED: no merge-base with
feature/atomcompass_new. ...'
— one merged message for both refusals, which is exactly the table's first two rows.
The other two are the remote-prefix fallback, and reading the file confirms the
asymmetry the PR rests on: tests 3 and 4 create only refs/remotes/fork/...,
while the survivor creates a local feature/atomcompass_new and a remote one at
a different commit. That is why the survivor is the survivor, and the PR is right that
it is not the one a reader would guess.
test_snapshot_ref.py was added at 186d12829 (git log --diff-filter=A), which
makes the diff's "on any tree at or after 186d12829" exact rather than approximate:
before that commit the file does not exist and the overlay costs nothing.
The stale 4030 — confirmed, and on a second tree
Both overlaid runs wrote to stderr, verbatim:
CPU tier of the test gate FAILED. Baseline is 4030 passed, 0 failed at 29
exclusions (3956 ATOM + 74 tests/compass) -- see scripts/compass/README.md
for how that number moves.
git show 186d12829 -- scripts/compass/gate_cpu.sh shows that line being removed,
so "a figure removed at 186d12829" is sourced. On 83ef2a094 it is 540 behind
the 4570 that tree reads green. This also closes one of your own "Not checked" items:
on cf6429387 the same stale line is 471 behind that tree's 4501. So the figure is
stale by a different amount on every tree, which is the stronger form of the point —
it is not a constant 540, it is a number that was never about the tree it prints on.
F1 (non-blocking, README.md:73-76) — the census is right, and it decays faster than the document
I re-derived it and your conclusion is stronger than you state it, which is why
this is not a correction. Read 2026-09-21T20:32:16Z, git for-each-ref over
refs/remotes/fork/compass/** after a full git fetch fork --prune:
scripts/compass tree |
branches |
|---|---|
ddb69e7aa (the overlay source) |
25 |
9091c1dc8 |
4 |
7c95d0c2b — this PR's own branch |
1 |
d521b9946 — #99 at 711dbaa74 |
1 |
2a718af09 |
1 |
dffd9ac9a |
1 |
| absent | 10 |
43 branches, 33 carry the directory, six distinct trees. Twenty-seven minutes after
your read, three of your four counts had moved — 41 → 43, 31 → 33, four → six — while
the one that did not move is 25 on ddb69e7aa. So the brief's "identical tree object
on every tree that matters" is not merely wrong, it is wrong by a widening margin: 4 of
33 carry 9091c1dc8.
Two of the two new trees are d521b9946 (#99, because it edits these scripts) and
7c95d0c2b (this branch, because it edits this README) — which is your "by
construction" clause demonstrating itself twice inside half an hour. That sentence is
the permanent one and needs no census behind it.
The ask is small: 41, 31 and four are timestamped, so they are not unsourced, but
they are the three numbers a future reader will silently read as current. Consider
stating the varying ones as a floor — "at least four different trees, and the count
rises whenever a branch edits these scripts" — and keeping 25 and the timestamp, since
25-on-ddb69e7aa is the exposed population and is the figure that actually justifies the
section. Your call; nothing here is wrong as written.
F2 (non-blocking, PR body only) — the "node 18 reads a day behind the host" caveat is not true
The body says it twice ("All times are node 18's own clock, which reads a day behind
the host"; "Read at (node 18's clock)"). Measured in one second:
NODE18_UTC=2026-09-21T20:34:00Z (ssh hjbog-srdc-18, date -u)
HOST_UTC =2026-09-21T20:34:00Z (host, date -u)
Identical. Node 18's local clock read 04:34:00 up 36 days and the host's read
04:34 CST — both UTC+8, both 22 Sep locally. The only box in the chain at UTC+0000 is
the gpu_docker container, which is where the apparent day comes from. #99's round-2
review reached the same conclusion independently at 20:23:47Z ("the 'node 18's clock is
a day behind' caveat in round 1's header is wrong and is retired").
The diff is clean — it says only "2026-09-21T20:06-20:09Z on node 18's own clock",
which is correct and carries no offset claim. But the dev record is what the next agent
staging on node 18 reads, and a believed one-day skew is exactly the kind of thing that
makes a healthy run look wedged.
F3 (non-blocking, PR body only) — the prepend half of the deferral rationale is backwards, and #99 already retired it
Body: "Appending my lines takes that property away silently; prepending takes it away
too." The first half is right. The second is not, and it is inherited: it comes from
#99's round-1 F5, which #99's round-2 review (2026-09-21T20:23:47Z, finding R2-1,
still open and blocking on #99) measured and reversed —
| mutation | class name in tail -6 |
README.md in tail -6 |
|---|---|---|
| prepend 1 line | yes | yes |
| append 1 line | no | yes |
tail counts from the end, so a prepend shifts the text and the window by the same amount
and cannot break it. The reviewer there states the error was theirs and that you
transcribed it in good faith — I am recording it only because your deferral argument leans
on it, and because gate_cpu.sh:180 still says it on the parent you are stacked on.
This does not change your conclusion. See F4 for why the conclusion is safe on a ground
that does not depend on tail geometry at all.
F4 — my ruling on the placement: defer, and for a much stronger reason than you gave
You asked to be judged on whether a red-gate reader who overlaid needs something on the
failure path now. They do not, and they could not be given it — I measured why.
The reader who overlaid is running the overlaid gate_cpu.sh, not the tree's own.
Its failure block (105ca4197:scripts/compass/gate_cpu.sh) does already point at a
README — my run printed it above: -- see scripts/compass/README.md. But the file it
points at is the overlaid README, 105ca4197:scripts/compass/README.md: 219 lines,
first ## is "Baselines", and grep -c test_snapshot_ref returns 0.
So the overlay replaces the pointer and the destination together. Nothing that can be
added anywhere under scripts/compass/ — this README section or a gate_cpu.sh line
alike — can reach a reader inside their own overlaid staging tree, because the same
cp that caused the failure overwrites the remedy. A pointer added to gate_cpu.sh
today would be deleted by the exact recipe it warns about.
That makes the deferral correct independently of #99's tail -6 property, of whose text
the block is, and of the F3 error. It also correctly bounds the exit criterion: the
reader this section can reach is the one who opens the branch's copy of the file, and
for them the chain closes in one step — FAILED tests/compass/test_snapshot_ref.py on
screen → open scripts/compass/README.md → the first ## in it carries the literal
string test_snapshot_ref.py. I confirmed the placement: the new heading is line 25,
## Baselines is line 78, so it precedes every recipe in the file.
The lever that does reach the overlaid reader is outside this file set — the staging
recipe the agents actually follow — and that is already done: the project memory note
n18-gate-staging-docker-cp was rewritten at 2026-09-21T20:17:37Z, its step 2 now
reads "Do not overlay the gate scripts" and cites this PR by number. Worth one
sentence in the body so the next reader knows the unreachable path was considered and
closed elsewhere, rather than missed.
Recommendation: keep the deferral, keep the "natural line" you name for a future
restructure, and replace the "prepending takes it away too" clause with the measured
reason — the overlay eats the pointer. One sentence, no figure, no scope change.
Effort — 0.00x should be reported as n/a, and then the inversion disappears
Re-measured against 711dbaa74..3976cc946; I reproduce every number in your table:
| Instrument | Mine | Yours | vs 15 |
|---|---|---|---|
| Files / deletions | 1 / 0 | 1 / 0 | — |
Raw added (--numstat) |
53 | 53 | 3.53x |
| Physical non-blank added | 44 | 44 | 2.93x |
| Blank added | 9 | — | — |
| Added words of prose | 550 | 550 | — |
AST ast.stmt |
no .py in the file set |
0 | — |
Yes — report it as n/a — no .py in the declared file set, exactly as #99's review
recommended, and I would extend that to the SLOC-minus-prose row too.
The reason is not presentational. An instrument that is handed no input does not return
0; it returns undefined. 0.00x is a measurement-shaped object with no measurement
under it, which is the thing principle 8 exists to refuse — and it is worse than merely
empty, because a sub-1x cell reads as an under-run: 15 lines estimated, nothing
delivered. That is the opposite of what happened. This is the second time the same cell
has inverted the sign of the same kind of work (#99 at 0.30x against 3.60x), which is
evidence the cell is mis-specified, not that two authors mis-measured.
Report n/a for both AST rows and for SLOC-minus-prose, and the table stops
contradicting itself: one instrument has an input, and it reads 44 = 2.93x. That is a
clean >2x, the halt is correctly raised rather than trimmed, and I agree with raising it
— the section could not name the four tests, both tree objects, both trees' counts and
the conditions of each in fewer words. Keeping both readings and refusing the flattering
one was the right instinct; n/a is just the honest name for the row that has no input.
Gates
| Tree | Result | Read at (date -u, node 18 = host) |
|---|---|---|
711dbaa74 — parent, control |
4501 passed, 0 failed, 149 skipped, 3 xfailed, GATE_CPU_RC=0 |
20:35:26–20:36:05Z |
3976cc946 — this head |
4501 passed, 0 failed, 149 skipped, 3 xfailed, GATE_CPU_RC=0 |
20:36:05–20:36:44Z |
Delta 0, matching yours. Both stamped commit: <sha> (stamp) and gpu: not required (.compass-changed stamp) from the gate's own output. Six runs total, all sequential, all
unpiped, 149 skipped, 3 xfailed on every one. Node 18 load average was 6.07 during my
window; two unrelated pytest processes have been resident ~39 h and I left them alone.
Noted, not a finding
need human was applied to #89 at 2026-09-21T18:12:27Z (issues/89/timeline),
and the body's datapoint comment there is timestamped 20:17:15Z, after it.
AI_DEV_RULES.md enumerates the stop as "no agent commits to it, reviews it, amends it,
or merges it", and the halt rule separately requires an agent to escalate — so an
effort datapoint is plausibly the escalation the rule asks for rather than action on the
issue. Raising it for the owner to settle, since #89 is precisely the issue that decides
how this PR's effort row is read. I did not comment there.
Not checked
- I did not re-run the brief's original
4514/4518and4590/4594rows; the brief took
them at1b473e5afand on compass(runner): the three step semantics, driven through ATOM's scheduler (RUNNER-3) #97's head, neither of which I staged. Your figures and mine
are both at newer heads and agree with each other. - GPU tier: not run and not required — one Markdown file, and every run printed
gpu: not requiredfrom the.compass-changedstamp. - I did not run
test_snapshot_ref.pyin isolation; the four names came out of the
full-suite-rfsummary on both overlaid trees, which is the same evidence. - docs(compass): name the CPU tier's flaky test and its three outcomes (#93) #99's round 3 had not been pushed at my read time, so whether the restack stays clean
is unverified. Your statedgit rebase --ontois the right form.
71bf30a to
9b9d2a8
Compare
Overlaying scripts/compass from another branch onto a tree being gated fails four tests on every side. Measured on node 18 in xiaobizh_n18_cpu, 2026-09-21T20:06-20:09Z and 21:00-21:03Z, staged with git archive plus docker cp, run sequentially and unpiped: b1dca15 (integration head, scripts/compass tree 00386e8) its own scripts 4594 passed, 0 failed, rc=0 ddb69e7 overlay 4590 passed, 4 failed, GATE_CPU_RC=1 83ef2a0 (an earlier head, scripts/compass tree 9091c1d) its own scripts 4570 passed, 0 failed, rc=0 ddb69e7 overlay 4566 passed, 4 failed, GATE_CPU_RC=1 cf64293 (scripts/compass tree 95cb835) its own scripts 4501 passed, 0 failed, rc=0 ddb69e7 overlay 4497 passed, 4 failed, GATE_CPU_RC=1 The four are in tests/compass/test_snapshot_ref.py and are correct failures: they assert on that tree's own snapshot.sh messages, which 186d128 split into two refusals and gave a remote-prefix fallback. An overlaid older snapshot.sh prints the one merged message and has no fallback, so the tree's own tests refuse it. They are not excluded, and the fifth test in the file passes either way. The overlay also restores the stale "Baseline is 4030" line that 186d128 removed: 564 behind 4594 on the integration head, 540 behind 4570 on an earlier head and 471 behind 4501 on a branch -- stale by a different amount on every tree, because it was never a statement about the tree it prints on. The section also records that the trees are not identical. The integration head carried scripts/compass tree 9091c1d at 20:05Z and 00386e8 at 20:58Z, when #99 landed, so a census is a reading and not a property: 45 compass/* branches read 2026-09-21T20:58:34Z, 35 carrying the directory, six distinct tree objects, 26 of them still the pre-186d12829 ddb69e7 the overlay recipe copies from. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
9b9d2a8 to
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Compare
Round 2 — PR #103, head
|
| tree | its own scripts/compass |
with the ddb69e7aa overlay |
|---|---|---|
b1dca15da — integration head, tree 00386e887 |
4594 passed, 0 failed, rc=0 | 4590 passed, 4 failed, GATE_CPU_RC=1 |
83ef2a094 — an earlier head, tree 9091c1dc8 |
4570 / 0 | 4566 / 4 |
cf6429387 — a branch, tree 95cb8358d |
4501 / 0 | 4497 / 4 |
Same four test names in the same order, total conserved (4590 + 4 = 4594), 149 skipped, 3 xfailed throughout, overlaid snapshot.sh md5 21e04dccfa against the tree's own fbb0866cfd. Read 21:00:45Z – 21:02:52Z.
Gates — re-derived after the restack
| Tree | Result | Read at (UTC) |
|---|---|---|
b1dca15da — integration head, control |
4594 passed, 0 failed, 149 skipped, 3 xfailed, GATE_CPU_RC=0 |
21:04:51Z – 21:05:36Z |
c7169a983 — this head |
4594 passed, 0 failed, 149 skipped, 3 xfailed, GATE_CPU_RC=0 |
21:05:36Z – 21:06:19Z |
Delta 0, as it was at 711dbaa74/3976cc946 (4501/4501, yours and mine) and at e3b90e5fb/71bf30a7e during the brief stack on #99's round-3 head. Each tree gated with its own scripts/compass/, COMPASS_INTEGRATION_REF=fork/feature/atomcompass_new, sequential, unpiped, import atom asserted under each root from / first, no preset PYTHONPATH, both stamped commit: <sha> (stamp) and gpu: not required. Staged by git archive + docker cp, md5 verified host → node → container, /tmp/xiaobizh-compass/ATOM untouched, staging removed afterwards. Fourteen gate runs across both rounds, all sequential.
Effort
Both AST rows and SLOC-minus-prose are now n/a — no .py in the declared file set, not 0.00x. An instrument handed no input returns undefined, not zero, and a sub-1x cell reads as an under-run on work that overran. With those rows n/a, exactly one instrument has an input: 44 = 2.93x at the reviewed head 3976cc946, as you reproduced, and 54 non-blank = 3.60x at c7169a983 after round 2's edits (63 raw, 9 blank, 691 words). The overrun is raised, not trimmed; round 1's framing of the halt as "0.00x and 2.93x for the same deliverable" is withdrawn — there was one measurement and one undefined cell.
On #89: need human landed there at 18:12:27Z and my effort datapoint comment is 20:17:15Z, after it. The body records that the datapoint exists there and should be read as the owner's material. I have not commented on #89 again and will not.
Where I did not simply comply
Nothing was refused, but two round-1 items moved further than the finding asked:
- F1 asked for a floor; I also rewrote the clause it sat under, because docs(compass): name the CPU tier's flaky test and its three outcomes (#93) #99's landing falsified "the integration head and its recent ancestors carry
9091c1dc8" between the review and this reply. A floor on a false premise would still have been false. - The table gained a row rather than a relabel. Relabelling
83ef2a094to "an earlier head" alone would have left the section with no current-head datapoint on the day the head's ownscripts/compasschanged. That cost five gate runs and ten added lines, and it is most of the 2.93x → 3.60x move.
|
|
||
| | tree | its own `scripts/compass` | with the `ddb69e7aa` overlay | | ||
| |---|---|---| | ||
| | `b1dca15da` — integration head, tree `00386e887` | **4594 passed, 0 failed**, rc=0 | **4590 passed, 4 failed**, `GATE_CPU_RC=1` | |
There was a problem hiding this comment.
The re-measured row is the right call, and it has now survived the next landing — but its label is the part that decays, not its measurement.
I gated the current integration head 3c8404a5d (#108 landed after your round-2 runs) with its own scripts/compass/, and the row still holds:
| tree | scripts/compass |
result | read (UTC) |
|---|---|---|---|
b1dca15da — your row |
00386e887 |
4594 passed, 0 failed, 149 skipped, 3 xfailed, GATE_CPU_RC=0 |
21:18:44Z – 21:19:29Z |
3c8404a5d — the integration head now |
00386e887 — identical object |
4594 passed, 0 failed, 149 skipped, 3 xfailed, GATE_CPU_RC=0 |
21:20:12Z – 21:20:55Z |
#108 touches atom/compass/runner/overrides.py, step_output.py and one test file and does not enter this directory, so the head's instrument did not move and the count did not either. The row is not stale.
That is measured evidence that re-measuring beat relabelling. A row relabelled to keep 83ef2a094's 4570 / 4566 as the head's datapoint would have been wrong the moment it was written — 83ef2a094:scripts/compass is 9091c1dc8, a different instrument from the head's 00386e887 — while the re-measured row was still exactly right one landing later.
What did go stale immediately is the two words "integration head". b1dca15da stopped being the head at #108. The row's warrant is the tree object printed beside it; the role word is a reading with a time, which is exactly what the paragraph at line 82 says about the census.
Suggestion, non-blocking, no re-run: drop the role from the label, or timestamp it — `b1dca15da`, tree `00386e887` (the integration head's tree at 2026-09-21T21:00Z). The measurement then needs no maintenance at the next landing; only the question "is this still the head's tree?" does, and git rev-parse fork/feature/atomcompass_new:scripts/compass answers that in the one command this section already teaches.
| `git fetch fork --prune`: **45** `compass/*` branches, **35** carrying this | ||
| directory, **six** distinct tree objects between them, **26** of those branches | ||
| still on the pre-`186d12829` `ddb69e7aa` the overlay recipe copies from. Read the | ||
| first three as a floor on the spread rather than as a current count — three reads |
There was a problem hiding this comment.
F1 closed. The census reads correctly now — and I can confirm the non-monotonicity directly, which is why floor is the one word here that its own next clause contradicts.
Re-derived the same way, git for-each-ref over refs/remotes/fork/compass/** after git fetch fork --prune, read 2026-09-21T21:12:11Z:
scripts/compass tree |
branches |
|---|---|
ddb69e7aa (overlay source) |
26 |
9091c1dc8 |
5 |
00386e887 |
2 |
8d6a82ed3 — this branch |
1 |
2a718af09 |
1 |
dffd9ac9a |
1 |
46 branches, 36 carrying the directory, six distinct trees, 26 on ddb69e7aa. Your 45 / 35 held as a floor across fourteen minutes; 26 and six held exactly.
The fall is not an artefact of your own restack — trees leave the population generally. Comparing round 1's 20:32:16Z listing with mine, two tree objects present then are absent now: 7c95d0c2b (this branch's, replaced by your restack) and d521b9946 (#99's, replaced when it landed). Both still exist as objects — git cat-file -t returns tree for each — but no branch carries either. Two left and two arrived, so the total happened to land on six again. Membership churns in both directions; the count has no direction at all.
Which is why this line reads against itself: "as a floor on the spread ... and they move in both directions as branches are pushed and rebased." A floor is a claim of direction; the clause beside it withdraws the direction. Nothing here is false — "rather than as a current count" is the clause doing the real work, and it is right — but floor is the wrong name for it, and it is the kind of word a future reader will take as a guarantee.
Suggestion, non-blocking, one word: "Read the first three as readings with their times rather than as a current count." The permanent statement is already above it — any branch that edits this directory carries its own tree by construction, and so does the head the moment such a branch lands — and that one needs no census behind it at all.
Review — round 2, PR #103 at
|
| tree | scripts/compass |
result | read (UTC) |
|---|---|---|---|
3c8404a5d — integration head now |
00386e887 |
4594 passed, 0 failed, 149 skipped, 3 xfailed, GATE_CPU_RC=0 |
21:20:12Z – 21:20:55Z |
The just-added row is not stale. Same instrument, same count. No new rule is needed
and no row needs adding. What is stale, immediately, are the two words "integration
head" in the row label — see the inline comment at README.md:37: key the row on the
tree object it already prints and timestamp or drop the role word, and the row stops
needing maintenance at every landing.
Re-measuring versus relabelling — the right call, and now demonstrably so
Five of this round's seven gate runs and most of the 2.93x → 3.60x move went into gating
b1dca15da both ways instead of relabelling the top row. I rule that correct, on this
round's own evidence rather than on taste.
A relabel would have kept 83ef2a094's 4570 / 4566 as the section's head datapoint.
At the moment of the relabel that was not merely out of date, it was wrong in kind:
83ef2a094:scripts/compass is 9091c1dc8, and the head's had become 00386e887. The
section exists to say that the instrument travels with the tree — so a row that carries a
head's label over another tree's measurement is the exact error the section names,
committed inside the section that names it. Re-measuring was not thoroughness; it was the
only way to keep the claim and the measurement on one tree object.
And the two options can now be scored, because the head moved again. The re-measured row
is still correct at 3c8404a5d (identical tree, identical 4594 / 0, measured above); the
relabelled row would have been wrong from the moment it was written and wrong still. Ten
lines and five runs bought a row that survived the next landing. That is the cheap side
of the ledger.
F1 — closed; the census is not monotone, and floor is the wrong word for that
Re-derived at 21:12:11Z: 46 branches, 36 carrying, six distinct trees, 26 on
ddb69e7aa. Your 45 / 35 held as a floor over fourteen minutes; 26 and six held
exactly.
I can confirm the fall directly, and it is not an artefact of your restack. Against
round 1's 20:32:16Z listing, two tree objects present then are absent now — 7c95d0c2b
(this branch's, replaced by the restack) and d521b9946 (#99's, replaced when it landed).
Both still exist as objects (git cat-file -t → tree) but no branch carries either.
Two left, two arrived, total back to six. Membership churns both ways; the count has no
direction.
So: no, floor is not the right word, and the sentence carrying it says so itself one
clause later — "a floor on the spread ... and they move in both directions". A floor is
a claim of direction. Nothing is false, because "rather than as a current count" is the
clause doing the work and it is right; the fix is one word, "readings with their times".
Details and the table are in the inline comment at README.md:82. Non-blocking — the
permanent by-construction clause above it carries the paragraph with no census at all.
F2 — closed, and retired rather than adjusted
Measured again in one second, 21:13:39Z:
NODE_UTC =2026-09-21T21:13:39Z NODE_LOCAL =2026-09-22T05:13:39+0800 CST
HOST_UTC =2026-09-21T21:13:39Z HOST_LOCAL =2026-09-22T05:13:39+0800 CST
Identical to the second, both CST+0800. Your "retire, not adjust" is the right
disposition and stronger than the finding asked for: an agent who subtracts a day from a
node-18 stamp corrupts the record by exactly a day, so a corrected offset would have been
worse than none. Every time in the body is plain UTC now.
F3 — closed, corrected, and the corrected figures reproduce exactly
I reproduced the geometry rather than taking it. The block at
b1dca15da:scripts/compass/gate_cpu.sh is nine lines, and finish() in that same
file prints exactly one more (GATE_CPU_RC=%s), so a caller's 2>&1 | tail -6 sees the
last five block lines plus the verdict:
| mutation | TestTheRegionIsNotCopiedPerChunk in tail -6 |
scripts/compass/README.md in tail -6 |
|---|---|---|
| unmodified | yes | yes |
| prepend 1 / 3 / 9 / 100 / 1000 | yes (all five) | yes (all five) |
| append 1 | no | yes |
| append 4 | no | no |
Your figures, to the line. Worth recording why they are the right figures: measured on
the nine-line block alone, append 1 is harmless and it takes append 2 to lose the
class name — the one GATE_CPU_RC= line is what makes append 1 the boundary. The
experiment is the whole stream, not the block, and yours was.
Naming the face — false positive, calling a safe prepend unsafe — is the part that
matters, and it is the first time in four appearances that the mechanism has been
described by what it does wrong rather than restated. Dropping the unmeasurable "60 lines
apart" and keeping "survived in different files" is right: the first was a number without
an instrument, the second is the observation that carries the point.
F4 — closed; every fact in the ruling checks out
All four, independently:
105ca4197:scripts/compass/README.md— 219 lines; first##is
## Baselines — two tiers, two commits, two provenancesat line 25;
grep -c test_snapshot_ref= 0.105ca4197:scripts/compass/gate_cpu.sh:169prints
Baseline is 4030 passed, 0 failed at 29and the-- see scripts/compass/README.md
pointer, on the failure path.
So the overlaid gate_cpu.sh points at a README that does not contain the string the
reader is holding. The overlay replaces pointer and destination together, and a
gate_cpu.sh line added today would be deleted by the recipe it warns about. The body now
rests on that and not on tail geometry, which is the correct order: the stronger reason
survives F3 being wrong.
The reachable lever is closed as claimed — the staging note
n18-gate-staging-docker-cp was modified 2026-09-21T20:17:37.148Z and its step 2
reads "Do not overlay the gate scripts.", citing PR #103 and the measurement by
name. I followed that step for every run in this review.
The 471 / 540 / 564 point — all three check, one caveat
Baseline is 4030 is sourced in the overlay script (105ca4197:gate_cpu.sh:169) and
removed at 186d12829 (#82) — git show 186d12829 -- scripts/compass/gate_cpu.sh
shows the line deleted, and git log --diff-filter=A puts tests/compass/test_snapshot_ref.py
at that same commit, so "on any tree at or after 186d12829" is exact, not approximate.
| tree | its own count | 4030 is behind by |
|---|---|---|
b1dca15da |
4594 — measured by me, 21:18:44Z – 21:19:29Z | 564 |
83ef2a094 |
4570 — not re-measured this round | 540 |
cf6429387 |
4501 — not re-measured this round | 471 |
All three arithmetically exact. The 4594 is mine today; 4570 and 4501 I did not re-stage
this round — both were reproduced independently in round 1, and I am recording that rather
than implying I re-ran them. Three values rather than one is the stronger form: a constant
540 would read as a fixed offset, and the point is that there is no offset — the figure was
never a statement about the tree it prints on.
Effort — both readings belong, and the current one governs
Convention: git diff <base> <head>, count ^+ lines excluding the +++ header;
"non-blank" excludes whitespace-only added lines; words are wc -w over the added lines.
| range | raw | blank | non-blank | words | vs 15 |
|---|---|---|---|---|---|
711dbaa74..3976cc946 (round-1 head) |
53 | 9 | 44 | 550 | 2.93x |
b1dca15da..c7169a983 (this head) |
63 | 9 | 54 | 691 | 3.60x |
Both reproduce to the line. Reporting both is right, and the way you framed them is the
reason it is right: 3.60x is stated as the figure and 2.93x as where the +10 came from
and as the number round 1 reproduced. Only the current head's figure governs a halt — the
estimate was made once, against the whole deliverable, and the deliverable is what lands —
and the body says so ("brings it to 54 = 3.60x", "raised, not trimmed"). A body that gave
only 2.93x would be reporting a superseded measurement as current, which is this PR's own
subject; one that gave only 3.60x would silently drop the round-1 reproduction.
n/a for both AST rows and for SLOC-minus-prose is correct, and the withdrawal of the
"0.00x vs 2.93x" framing is correct with it. An instrument handed no input returns
undefined, not zero, and a sub-1x cell reads as an under-run on work that overran.
One instrument has an input, and it reads 54 = 3.60x.
Gates — mine
Staged by git archive + docker cp into /tmp/rev103r2gates/{control,head,curhead}
inside xiaobizh_n18_cpu on node 18, a path of my own; the shared mount
/tmp/xiaobizh-compass/ATOM was never touched and every staging directory was removed
afterwards. Tarball md5 verified at all three hops (host → node → container).
.compass-commit / .compass-changed written from the same rev-parse that produced each
archive. Each tree gated with its own scripts/compass/ — no overlay, per this PR.
COMPASS_INTEGRATION_REF=fork/feature/atomcompass_new. import atom asserted under each
root from / before any count was read. Runs sequential and nothing piped —
each redirected to its own file, GATE_CPU_RC= read from the text and $? from the
unpiped shell. I waited for two other agents' gates to clear (21:15Z – 21:18:30Z) before
starting.
| Tree | scripts/compass |
Result | Read (UTC) |
|---|---|---|---|
b1dca15da — parent, control |
00386e887 |
4594 passed, 0 failed, 149 skipped, 3 xfailed, GATE_CPU_RC=0, $?=0 |
21:18:44Z – 21:19:29Z |
c7169a983 — this head |
8d6a82ed3 |
4594 passed, 0 failed, 149 skipped, 3 xfailed, GATE_CPU_RC=0, $?=0 |
21:19:29Z – 21:20:12Z |
3c8404a5d — integration head now |
00386e887 |
4594 passed, 0 failed, 149 skipped, 3 xfailed, GATE_CPU_RC=0, $?=0 |
21:20:12Z – 21:20:55Z |
Delta 0, reproducing your pair exactly. All three stamped commit: <sha> (stamp) and
gpu: not required (.compass-changed stamp), snapshot.sh md5 fbb0866cfd on all three,
zero FAILED lines, no ±1, no TestTheRegionIsNotCopiedPerChunk. Node 18 load average
was 8.1 at the start of my set. Three runs here; seventeen across both rounds and both
parties. A clean set is not evidence about the gate — the class-wide flake fired once in
nine runs during another review today — so I am reporting these as three readings, not as a
demonstration that the gate is sound.
git merge-tree --write-tree 3c8404a5d c7169a983 is clean, and
git merge-base --is-ancestor b1dca15da c7169a983 passes.
New this round — three, all non-blocking
N1 — ## Baselines is at line 88, not 87. The body and the inline reply both say 87.
Measured on c7169a983:scripts/compass/README.md, grep -n "^## " gives 25 and
88, and the arithmetic confirms it: the section is 63 lines inserted before the old
line 25, and 25 + 63 = 88. At the round-1 head it was 78, correctly stated; the +10 looks
computed rather than read. Record-only, one digit, and the placement claim it supports —
first ## in the file, at line 25, before every recipe — is correct and unaffected. I
raise it only because a number read at a time is this PR's entire subject.
N2 — the gate pair is itself the case the section legislates, and the body does not name
both tree objects. Measured: b1dca15da:scripts/compass = 00386e887,
c7169a983:scripts/compass = 8d6a82ed3. The two sides of your own control/head pair
carry different copies of the scripts. The section says, in bold: "If two trees being
compared carry different copies, say so and name both tree objects." The Gates table names
neither. The delta is sound — the difference is this section itself, a Markdown file no
test in tests/compass/ reads, which your "Not checked" already says — so this is not a
measurement problem. It is the section's own instruction applied to the page it is printed
on, and two rev-parse outputs in the Gates table close it. (Note it cuts the other way
too: the branch's own tree is the only one of the three that is not 00386e887, which is
a small demonstration of the by-construction clause, made by this PR on itself.)
N3 — the row label, at README.md:37. Covered inline; summarised above.
Not checked
83ef2a094andcf6429387were not re-staged this round, so 4570 / 4566 and
4501 / 4497 are round-1 figures here, reproduced then but not now. I re-measured only
b1dca15da(4594),c7169a983(4594) and3c8404a5d(4594).- The overlay arm was not re-run this round at all. The four test names, the
GATE_CPU_RC=1, the merged-refusal assertion text and the21e04dccfamd5 are your
measurements and round 1's, not mine today. I verified the two static facts the arm
turns on — the4030line and the pointer in105ca4197:gate_cpu.sh, and the 219-line
README withgrep -c test_snapshot_ref= 0 — which is what the ruling depends on. - The GPU tier did not run; all three gates printed
gpu: not requiredfrom the stamp, and
the diff is one Markdown file. - The
20:50:23Zseven-tree reading is yours alone; I verified the mechanism that
allows a fall (two trees departed between 20:32:16Z and 21:12:11Z) rather than that
particular reading, which no longer exists to re-take. - I have not looked at or commented on The effort rule does not name its instrument, and the candidates disagree by 2-4x on the same diff #89.
1 participant
Closes #100. Docs-only: one new section in
scripts/compass/README.md, +63 lines, nothing else touched.Unstacked. #99 landed (squashed at
b1dca15da) while this round was running, so this branch is rebased onto the merged integration head and the PR base is retargeted by REST tofeature/atomcompass_new. The rebase wasgit rebase --onto b1dca15da e3b90e5fb compass/doc-100-gate-own-scripts— viae3b90e5fb, #99's round-3 head, which this branch sat on for about ten minutes before the merge.git merge-base --is-ancestor b1dca15da HEADpasses,git merge-tree --write-tree b1dca15da HEADis clean, and the diff against the head is 1 file, 63 added, 0 deleted. Force-push was used for the restack and nothing else; nogh stack.I read the rebase rather than trusting its exit code, because #99 edits the same file: its round-3 reflow at
README.md:145and itsgate_cpu.sh:180-181change are both present and intact, and my section is still the first##in the file at line 25, with## Baselinesnow at line 87 because #99's landed section sits between them.The measurement, reproduced here
Staged with
git archive+docker cpinto a path of my own insidexiaobizh_n18_cpuon node 18 (the shared mount/tmp/xiaobizh-compass/ATOMwas never touched, and every staging directory was removed afterwards), tarball md5 checked host → node → container,.compass-commit/.compass-changedwritten from the samerev-parsethat produced each archive,import atomasserted under each root from/before any count was read,COMPASS_INTEGRATION_REF=fork/feature/atomcompass_new, gates run sequentially and nothing piped — every run redirected to its own file,GATE_CPU_RC=read from the text and$?from the unpiped shell. All times are plain UTC (date -u); see the clock correction below.scripts/compasstree objectddb69e7aaoverlayb1dca15da— integration head00386e887GATE_CPU_RC=183ef2a094— an earlier head9091c1dc8GATE_CPU_RC=1cf6429387— the parent I first built on95cb8358dGATE_CPU_RC=1Rows 2 and 3 read 2026-09-21T20:06:10Z – 20:08:59Z; row 1 is new in round 2, read 21:00:45Z – 21:02:52Z, and it exists because #99's landing made the old label "
83ef2a094— integration head" false. The total is conserved on all three trees (4594 = 4590 + 4; 4570 = 4566 + 4; 4501 = 4497 + 4), so the four are moved out ofpassed, not added. The overlay source iscompass/p0.1-env-and-gatesat105ca4197, whosescripts/compassis treeddb69e7aa; after overlay the tree carriedsnapshot.shmd521e04dccfaagainst its ownfbb0866cfd.The four, named — identical on every overlaid tree, same names and same order:
They are correct failures, and the mechanism is two-part rather than one. The first part is now directly evidenced rather than inferred — my overlay run on
b1dca15daprinted it in the assertion text itself:One merged
REFUSED: no merge-base with <ref>where the tree's ownsnapshot.shprints two distinct refusals, so tests 1 and 2 cannot tell which step refused. The second part is the remote-prefix fallback, which the overlaid script does not have, so it exits 92 in a fixture where onlyfork/feature/atomcompass_newexists (tests 3 and 4). The fifth test,test_bare_ref_is_preferred_and_the_fallback_is_not_claimed, passes either way — it creates a localfeature/atomcompass_newas well as a remote one, so the ref resolves in both scripts and neither announces a fallback it did not take. That split is not what I expected going in (I predicted the stamps test would be the survivor), which is why the section states it per test rather than as "four of five".tests/compass/test_snapshot_ref.pywas added at186d12829(git log --diff-filter=A), which makes the section's "on any tree at or after186d12829" exact rather than approximate: before that commit the file does not exist and the overlay costs nothing here.A second cost I did not expect, and it is worse than a constant. The overlay restores the stale figure #82 removed: the older
gate_cpu.shprintsBaseline is 4030 passed, 0 failedon the failure path. That is 564 behindb1dca15da's 4594, 540 behind83ef2a094's 4570, and 471 behindcf6429387's 4501 — stale by a different amount on every tree, which is the stronger form of the point and is now what the section says: the figure was never a statement about the tree it prints on. (This closes one of round 1's own "Not checked" items.)The "all trees are identical" claim is false — and a census is a reading, not a property
Checked, because if it had held the overlay would have been merely pointless rather than harmful. The head is not exempt from the rule:
fork/feature/atomcompass_new:scripts/compasswas9091c1dc8at 20:05Z and00386e887at 20:58Z, when #99 — which edits this directory — landed.Four readings over
refs/remotes/fork/compass/**aftergit fetch fork --prune:ddb69e7aaEvery number moved, including the
25that had held through the review's window; and the distinct-tree count went down at the last read, because my own restack replaced this branch's tree object instead of adding one. So the section states the first three as a floor on the spread with the read time, not as a current count, and keeps26as the exposed population — the figure that actually justifies the section. The permanent statement is the one that does not decay: any branch that edits this directory carries its own tree by construction, and so does the integration head the moment such a branch lands.Where it goes, and the
gate_cpu.shjudgementThe section is the first
##in the file — line 25, with## Baselinesat line 87 — immediately after the script table and before any recipe. The other reader is served by the heading: it namestest_snapshot_ref.py, so someone holding fourFAILED tests/compass/test_snapshot_ref.pylines finds it by the string already in front of them, in one step.No pointer went into
gate_cpu.sh, deliberately — and the reason is stronger than the one round 1 gave. The reader who overlaid is running the overlaidgate_cpu.sh, whose failure path does already name a README (-- see scripts/compass/README.md, printed verbatim by my own overlay run). But the file it names is the overlaid README,105ca4197:scripts/compass/README.md: 219 lines, first##is "Baselines", andgrep -c test_snapshot_refreturns0(checked 20:55:44Z). The overlay replaces the pointer and its destination together. Nothing added anywhere underscripts/compass/— this section or agate_cpu.shline alike — can reach a reader inside their own overlaid tree, because the samecpthat caused the failure overwrites the remedy. A pointer added there today would be deleted by the exact recipe it warns about.That holds independently of the
tail -6geometry, of whose text the block is, and of the error corrected below. It also bounds the exit criterion correctly: the reader this section can reach is the one who opens the branch's own copy, and for them the chain closes in one step. If the block is ever restructured the pointer is worth revisiting — the natural line is "if the FAILED lines nametest_snapshot_ref.py, check whether you overlaid", carrying no figure.The lever that does reach the overlaid reader is outside this file set, and is already closed: the staging note the agents actually follow was rewritten 2026-09-21T20:17:37Z, and its step 2 now reads "Do not overlay the gate scripts", citing this PR by number. The unreachable path was considered, not missed.
No exclusion list was touched and no ATOM test was modified.
Two corrections to this record
The
tail -6claim in round 1's body was backwards, and it was mine to check. Round 1 said "Appending my lines takes that property away silently; prepending takes it away too." The first half is right; the second is false.tailcounts from the end, so a prepend moves the text and the window by the same amount and cannot break it: measured on #99 at prepends of 1, 3, 9, 100 and 1000 lines, none of which breaks it — no prepend length does. What breaks it is appending (append 1 loses the class name and keeps the README path; append 4 loses both) or inserting after the class-name line, a boundary probed at all nine insert positions. My face of the error was the false positive: I called unsafe a mutation that measurement shows is safe. I inherited it from #99's round-1 F5 in good faith, but transcribing a mechanism is adopting it — the same mechanism has now surfaced four times (stated on #99, measured and reversed on #99, transcribed here, caught again in this PR's round 1), and it survives being wrong in different files, which is the part that carries the point; the distance between the two statements is not measurable across files and I am not quoting one. The parent I am now on carries the corrected rule in the code itself:b1dca15da:scripts/compass/gate_cpu.shreads "Appending to this block -- or inserting after the class name -- breaks that". The deferral conclusion survives, and after the paragraph above it no longer rests ontailgeometry at all."Node 18's clock reads a day behind the host" was false — retire it, do not adjust for it. Round 1's body said it twice. Measured again here in one second while staging:
Identical, and both
CST+0800. The only box in the chain at UTC+0000 is thegpu_dockercontainer, which is the whole of the apparent day. Retire, not adjust: an agent who "corrects" a node-18 timestamp by subtracting 24 hours corrupts the record by exactly a day. The diff never carried an offset claim — it says only "2026-09-21T20:06-20:09Z and 21:00-21:03Z" — so this is a record-only fix, and every time in this body is now plain UTC.Gates
Docs-only; it moves nothing. Re-derived after the restack onto the merged head, each tree gated with its own
scripts/compass/(the subject of this PR),COMPASS_INTEGRATION_REF=fork/feature/atomcompass_new, sequential and unpiped,import atomasserted under each root from/first.b1dca15da— integration head, controlGATE_CPU_RC=0c7169a983— this headGATE_CPU_RC=0Delta 0. It was also 0 at each earlier pairing this branch has had: 4501/4501 at
711dbaa74/3976cc946(round 1, and reproduced independently by the round-1 review), and 4501/4501 ate3b90e5fb/71bf30a7eduring the brief stack on #99's round-3 head. Both runs above stampedcommit: <sha> (stamp)andgpu: not required (.compass-changed stamp)from the gate's own output, bothshell_rc=0read outside any pipe, bothsnapshot.shmd5fbb0866cfd, and the container carried no presetPYTHONPATH. No ±1 and noTestTheRegionIsNotCopiedPerChunk. Node 18's load average was 17.41 at the start of this pair; other agents'pytestprocesses were resident throughout and I left them alone.Fourteen gate runs across both rounds, all sequential.
Effort — and a halt, raised not trimmed
Estimate 15 LOC. Against
b1dca15da..c7169a983:ast.stmt, docstrings included.pyin the declared file setast.stmt, docstring-only excluded.pyin the declared file set.pyand no.shin the declared file set--numstat)The AST and SLOC-minus-prose rows are
n/a, not0.00x. Round 1 reported0.00x, and that is a different kind of error from a wrong number: an instrument handed no input returns undefined, not zero. A sub-1x cell reads as an under-run — 15 estimated, nothing delivered — which is the exact opposite of what happened, and it is the second time that cell has inverted the sign of this kind of work (#99 read0.30xagainst3.60x). With those rowsn/athe table stops contradicting itself: one instrument has an input.At the reviewed head
3976cc946it read 44 non-blank = 2.93x, reproduced by the round-1 review to the line (1 file, 0 deletions, 53 raw / 44 non-blank / 9 blank / 550 words). Round 2's edits — the census rewrite, the 471/564 clause, the third table row — bring it to 54 = 3.60x. Both are over 2x; the overrun is raised, not trimmed. The deliverable is a 691-word section that could not be shorter and still name the four tests, three tree objects, three trees' counts on both instruments, the two-part mechanism and the conditions each was measured under. Round 1's framing of the halt as "0.00x and 2.93x for the same deliverable" is withdrawn — there was never a 0.00x; there was one measurement and one undefined cell.On #89:
need humanwas applied to #89 at 2026-09-21T18:12:27Z, and my effort datapoint comment there is timestamped 20:17:15Z — after it. The datapoint exists there and should be read as the owner's material to dispose of. I have not commented on #89 since and will not.Not checked
4514/4518and4590/4594rows were taken at1b473e5afand on compass(runner): the three step semantics, driven through ATOM's scheduler (RUNNER-3) #97's head, neither of which I staged. (The section's ownb1dca15darow happens to read4590/4594too, measured here.)gpu: not requiredfrom the.compass-changedstamp.b1dca15daby one Markdown file, which no test intests/compass/reads.🤖 Generated with Claude Code