Evidence: Block 4 · Service (block-4)

block type: block
date: 2026-08-15
resulting state: closed/verified
story points (combined assembled cost): 60056
execution id: 20260815.210928.719Z-4a50798b

Stories built

Parse lists, list items, nesting, laziness, and tightness. (block-003) [story]

Stacked context

compass: COMPASS.md (SP 1455)
implements: FEATURE-Block-Lists.md (SP 627)
context: spec.txt (SP 51527)
context: spec_tests.py (SP 1609)
context: cmark.py (SP 339)
context: normalize.py (SP 1631)
context: ARCHITECTURE_compact.md (SP 87)
stack: common_compact.md (SP 1179)
stack: python_compact.md (SP 1534)

Build directory changes

commonmark
tests/test_interface.py

Pre-build acceptance observation

RED: lists-conformance (FEATURE-Block-Lists.md)

intent: The implementation passes every supplied conformance example owned by list items and lists. return code: 1 stdout: Example 257 (lines 4212-4221) List items

two

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>one</li></ul>two +<ul><li>one</li></ul>two

Example 259 (lines 4238-4248) List items

two

--- expected HTML +++ actual HTML @@ -1,2 +1 @@ -<ul><li>one</li></ul><pre><code> two -</code></pre> +<ul><li>onetwo</li></ul>

Example 262 (lines 4300-4313) List items >>- one >> > > two

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<blockquote><blockquote><ul><li>one</li></ul>two</blockquote></blockquote> +<blockquote><blockquote><ul><li>one</li></ul>two</blockquote></blockquote>

Example 267 (lines 4399-4405) List items

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ol start="123456789"><li>ok</li></ol> +<ol><li>ok</li></ol>

Example 268 (lines 4408-4412) List items

not ok

--- expected HTML +++ actual HTML @@ -1 +1 @@ -1234567890. not ok +<ol><li>not ok</li></ol>

Example 270 (lines 4426-4432) List items

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ol start="3"><li>ok</li></ol> +<ol start="003"><li>ok</li></ol>

Example 273 (lines 4477-4489) List items

bar

--- expected HTML +++ actual HTML @@ -1,2 +1,2 @@ -<ol start="10"><li>foo<pre><code>bar +<ol><li>foo<pre><code> bar </code></pre></li></ol>

Example 275 (lines 4511-4527) List items

indented code

paragraph

more code

--- expected HTML +++ actual HTML @@ -1,3 +1,2 @@ -<ol><li><pre><code>indented code -</code></pre>paragraph<pre><code>more code -</code></pre></li></ol> +<ol><li>indented code</li></ol>paragraph<pre><code> more code +</code></pre>

Example 276 (lines 4533-4549) List items

indented code

paragraph

more code

--- expected HTML +++ actual HTML @@ -1,3 +1,2 @@ -<ol><li><pre><code> indented code -</code></pre>paragraph<pre><code>more code -</code></pre></li></ol> +<ol><li>indented code</li></ol>paragraph<pre><code> more code +</code></pre>

Example 278 (lines 4570-4579) List items

bar

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>foo</li></ul>bar +<ul><li>foo</li></ul>bar

Example 280 (lines 4614-4635) List items - foo - bar - baz

--- expected HTML +++ actual HTML @@ -1,3 +1,2 @@ -<ul><li>foo</li><li><pre><code>bar -</code></pre></li><li><pre><code>baz -</code></pre></li></ul> +<h2>- foo</h2><pre><code>bar +</code></pre>- baz

Example 281 (lines 4640-4647) List items

foo

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>foo</li></ul> +<ul><li></li></ul>foo

Example 282 (lines 4654-4663) List items -

foo

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li></li></ul>foo +-foo

Example 283 (lines 4668-4678) List items

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>foo</li><li></li><li>bar</li></ul> +<ul><li>foo</li></ul>- - bar

Example 284 (lines 4683-4693) List items

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>foo</li><li></li><li>bar</li></ul> +<ul><li>foo</li><li></li><li>bar</li></ul>

Example 285 (lines 4698-4708) List items

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ol><li>foo</li><li></li><li>bar</li></ol> +<ol><li>foo</li></ol>2. 3. bar

Example 286 (lines 4713-4719) List items *

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li></li></ul> +*

Example 288 (lines 4745-4764) List items

A paragraph

with two lines.

indented code

> A block quote.

--- expected HTML +++ actual HTML @@ -1,2 +1,2 @@ -<ol><li>A paragraph with two lines.<pre><code>indented code +<ol><li>A paragraph with two lines.<pre><code> indented code </code></pre><blockquote>A block quote.</blockquote></li></ol>

Example 289 (lines 4769-4788) List items

A paragraph

with two lines.

indented code

> A block quote.

Example 290 (lines 4793-4812) List items

A paragraph

with two lines.

indented code

> A block quote.

Example 292 (lines 4847-4866) List items

A paragraph

with two lines.

indented code

> A block quote.

--- expected HTML +++ actual HTML @@ -1,2 +1,4 @@ -<ol><li>A paragraph with two lines.<pre><code>indented code -</code></pre><blockquote>A block quote.</blockquote></li></ol> +<ol><li>A paragraph</li></ol>with two lines.<pre><code> indented code +

> A block quote.

+</code></pre>

Example 293 (lines 4871-4879) List items

A paragraph

with two lines.

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ol><li>A paragraph with two lines.</li></ol> +<ol><li>A paragraph with two lines.</li></ol>

Example 294 (lines 4884-4898) List items > 1. > Blockquote continued here.

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<blockquote><ol><li><blockquote>Blockquote continued here.</blockquote></li></ol></blockquote> +<blockquote><ol><li><blockquote>Blockquote</blockquote></li></ol>continued here.</blockquote>

Example 295 (lines 4901-4915) List items > 1. > Blockquote > continued here.

Example 296 (lines 4929-4950) List items

foo
- bar
  - baz
    - boo

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>foo<ul><li>bar<ul><li>baz<ul><li>boo</li></ul></li></ul></li></ul></li></ul> +<ul><li>foo</li><li>bar - baz - boo</li></ul>

Example 298 (lines 4972-4983) List items

foo
- bar

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ol start="10"><li>foo<ul><li>bar</li></ul></li></ol> +<ol><li>foo - bar</li></ol>

Example 299 (lines 4988-4998) List items

foo
- bar

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ol start="10"><li>foo</li></ol><ul><li>bar</li></ul> +<ol><li>foo</li></ol><ul><li>bar</li></ul>

Example 302 (lines 5035-5049) List items

# Foo
Bar

--- baz

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li><h1>Foo</h1></li><li><h2>Bar</h2>baz</li></ul> +<ul><li><h1>Foo</h1></li><li><h2>Bar</h2>baz</li></ul>

Example 303 (lines 5271-5283) Lists

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>foo</li><li>bar</li></ul><ul><li>baz</li></ul> +<ul><li>foo</li><li>bar</li><li>baz</li></ul>

Example 304 (lines 5286-5298) Lists

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ol><li>foo</li><li>bar</li></ol><ol start="3"><li>baz</li></ol> +<ol><li>foo</li><li>bar</li><li>baz</li></ol>

Example 305 (lines 5305-5315) Lists Foo

--- expected HTML +++ actual HTML @@ -1 +1 @@ -Foo<ul><li>bar</li><li>baz</li></ul> +Foo - bar - baz

Example 307 (lines 5392-5400) Lists The number of windows in my house is

The number of doors is 6.

--- expected HTML +++ actual HTML @@ -1 +1 @@ -The number of windows in my house is<ol><li>The number of doors is 6.</li></ol> +The number of windows in my house is 1. The number of doors is 6.

Example 309 (lines 5427-5449) Lists

foo
- bar
  - baz

bim

--- expected HTML +++ actual HTML @@ -1 +1,2 @@ -<ul><li>foo<ul><li>bar<ul><li>bazbim</li></ul></li></ul></li></ul> +<ul><li>foo</li><li>bar - baz<pre><code>bim +</code></pre></li></ul>

Example 310 (lines 5457-5475) Lists

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>foo</li><li>bar</li></ul><ul><li>baz</li><li>bim</li></ul> +<ul><li>foo</li><li>bar</li></ul><ul><li>baz</li><li>bim</li></ul>

Example 314 (lines 5554-5568) Lists

a
- b
  - c
    - d
      - e

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>a</li><li>b</li><li>c</li><li>d - e</li></ul> +<ul><li>a</li><li>b</li><li>c</li><li>d - e</li></ul>

Example 315 (lines 5574-5591) Lists

--- expected HTML +++ actual HTML @@ -1,2 +1 @@ -<ol><li>a</li><li>b</li></ol><pre><code>3. c -</code></pre> +<ol><li>a</li><li>b<ol start="3"><li>c</li></ol></li></ol>

Example 317 (lines 5619-5634) Lists

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>a</li><li></li><li>c</li></ul> +<ul><li>a</li></ul>*<ul><li>c</li></ul>

Example 320 (lines 5686-5705) Lists

--- expected HTML +++ actual HTML @@ -1,4 +1,4 @@ -<ul><li>a</li><li><pre><code>b +<ul><li>a</li><li><pre><code>b

-</code></pre></li><li>c</li></ul> +</code></pre></li><li>c</li></ul>

Example 321 (lines 5712-5730) Lists

a
- b

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>a<ul><li>bc</li></ul></li><li>d</li></ul> +<ul><li>a</li><li>bc</li><li>d</li></ul>

Example 322 (lines 5736-5750) Lists

> b >

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>a<blockquote>b</blockquote></li><li>c</li></ul> +<ul><li>a<blockquote>b</blockquote></li><li>c</li></ul>

Example 323 (lines 5756-5774) Lists

> b c

--- expected HTML +++ actual HTML @@ -1,2 +1 @@ -<ul><li>a<blockquote>b</blockquote><pre><code>c -</code></pre></li><li>d</li></ul> +<ul><li>a<blockquote>b<pre><code></code></pre></blockquote>c<pre><code></code></pre></li><li>d</li></ul>

Example 325 (lines 5788-5799) Lists

a
- b

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>a<ul><li>b</li></ul></li></ul> +<ul><li>a</li><li>b</li></ul>

Example 327 (lines 5824-5839) Lists

foo
- bar

baz

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>foo<ul><li>bar</li></ul>baz</li></ul> +<ul><li>foo</li><li>barbaz</li></ul>

Example 328 (lines 5842-5867) Lists

a
- b
- c

d
- e
- f

--- expected HTML +++ actual HTML @@ -1 +1 @@ -<ul><li>a<ul><li>b</li><li>c</li></ul></li><li>d<ul><li>e</li><li>f</li></ul></li></ul> +<ul><li>a</li><li>b</li><li>c</li><li>d</li><li>e</li><li>f</li></ul>

30 passed, 44 failed, 0 errored, 581 skipped stderr: Traceback (most recent call last): File "lists-conformance.py", line 20, in <module> assert result.returncode == 0 ^^^^^^^^^^^^^^^^^^^^^^ AssertionError

GREEN (prepassed): lists-interface (FEATURE-Block-Lists.md)

intent: A bullet list is accepted through the executable interface. return code: 0 stdout: <ul><li>one</li><li>two</li></ul>

GREEN (prepassed): lists-nested-input (FEATURE-Block-Lists.md)

intent: Nested and ordered list input is accepted through the executable interface. return code: 0 stdout: <ol><li>one</li></ol> <ul><li>nested</li></ul>

Post-build programmatic acceptance

PASS: lists-conformance (FEATURE-Block-Lists.md)

intent: The implementation passes every supplied conformance example owned by list items and lists. target interpreter: /mnt/c/Users/barlo/projects/drydock/.venv/bin/python3 provisioning: not required return code: 0 stdout: 74 passed, 0 failed, 0 errored, 581 skipped

PASS: lists-interface (FEATURE-Block-Lists.md)

intent: A bullet list is accepted through the executable interface. target interpreter: /mnt/c/Users/barlo/projects/drydock/.venv/bin/python3 provisioning: not required return code: 0 stdout: <ul><li>one</li><li>two</li></ul>

PASS: lists-nested-input (FEATURE-Block-Lists.md)

intent: Nested and ordered list input is accepted through the executable interface. target interpreter: /mnt/c/Users/barlo/projects/drydock/.venv/bin/python3 provisioning: not required return code: 0 stdout: <ol><li>one <ul><li>nested</li></ul></li></ol>

Repair attempts

attempt 0 (initial build): failed; 2/3 checks; 73/74 cases model=gpt-5.6-luna; execution 20260815.210131.085Z-a3196f28
attempt 1 (repair 1): built; 3/3 checks; 74/74 cases model=gpt-5.6-luna; execution 20260815.210928.719Z-4a50798b

Build summary

RESULT: SUCCESS

FILES CHANGED:

commonmark
tests/test_interface.py

SUMMARY: Fixed nested-list tightness detection and loose outer-list rendering. List conformance passes: 74 passed, 0 failed. Added deterministic regression tests; all 5 interface tests pass.

BLOCKERS:

None