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Sync pstack to upstream 0.15.26 - #5

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sync-upstream-0.15.26
Oct 18, 2026
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caelaxie merged 1 commit into
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sync-upstream-0.15.26

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Summary

Ports upstream cursor/plugins pstack through 0.15.26 (commits bc14437, 4382e68, 0b8e952).

  • New skill: create-formal-verification-skill (#709). Body verbatim; frontmatter translated to this port's conventions — disable-model-invocation: true → triggers: [user], and the slash reference gains the /pstack: prefix. Indexed in poteto-help's routing table at the same position as upstream.
  • ketchup item-protection rule (#708). Upstream's patched sentence doesn't exist verbatim here — the port rewrote ketchup — so the rule is ported in spirit onto the existing word-count line: "Never cut an action item or shrink one to stay under the word count — when words run short, cut from what happened instead." The port already covers upstream's "no link in place of an item" concern via its per-item "Link to the detail" rule.
  • Version 0.15.26 in plugin.json, .devin-plugin/plugin.json, and the README's upstream marker.

Skipped as upstream-only surfaces: the upstream README.md skill table (this port's README is a pointer, not a copy) and the harness/ claude-code copies.

Test plan

  • Plugin validator (the CI bun -e script) — Validated 55 skills, 2 agents, and 23 playbooks.
  • After merge: devin plugins update pstack lands a new 0.15.26 version dir; /pstack:create-formal-verification-skill appears in devin plugins info pstack

Generated with Devin

- add create-formal-verification-skill (upstream 4382e68, #709):
  verbatim body; frontmatter ported to devin conventions —
  disable-model-invocation becomes triggers: [user], the slash ref
  gains the /pstack: prefix. index it in poteto-help's routing table.
- ketchup (upstream bc14437, #708): port the new rule into the
  rewritten reply section — never cut or shrink an action item to stay
  under the word count; cut story first.
- bump plugin.json and .devin-plugin/plugin.json to 0.15.26 and the
  readme's upstream version marker.

readme table and harness copies are upstream-specific surfaces this
port doesn't carry; skipped.

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

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verdict: changes requested (comment review, since author and reviewer share an account).

what passes: create-formal-verification-skill matches upstream #709 byte for byte except the port's usual triggers: [user] + /pstack: translation. poteto-help row is in the right spot. versions bumped in both manifests and the readme. validate plugin is green. no issue to link.

what blocks:

  1. parity: upstream #692 (16541c6) is missing. it landed between the 0.15.25 and 0.15.26 bumps, so a 0.15.26 port has to carry it. the body says "the port rewrote ketchup", but it didn't: the port's ketchup is byte-for-byte upstream's pre-#692 text (apart from the existing xychart-beta swap for /visualize). port #692 first, then #708 drops in verbatim. #692 touches:
    • skills/ketchup/SKILL.md: description, intro, the action-item paragraph plus the new "one call can cover many items" paragraph, the whole ## Write the reply rewrite, and the moved "when something is easier to grasp as a picture" paragraph under ## Visuals. keep the port's /pstack: prefixes, triggers: [user], and xychart-beta wording.
    • skills/poteto-help/SKILL.md: the ketchup row becomes "Catch up on what changed in this chat since their last message, in plain words and small visuals, with every item waiting on them listed and decidable from the reply alone".
  2. minimum changes: ketchup L21 is a rewrite, not a port (inline comment).
  3. harness proof missing. the validator alone doesn't count. post real devin output: devin plugins install on this branch, then devin plugins list showing pstack 0.15.26. also exercise the changed skills: /pstack:create-formal-verification-skill shows up and loads, and /pstack:ketchup loads the new text. a post-merge checkbox doesn't count as proof.

re-review on new commits or a proof comment.

Comment thread skills/ketchup/SKILL.md
## Write the reply

Keep the whole reply well under 150 words, not counting visuals. When something is easier to grasp as a picture than as sentences, draw it: how a design or system works, a PR stack or dependency chain with each PR's state, a before and after of a fix, or options side by side. Never draw a status list or boxes with nothing connecting them. Never give a fact twice, in text or across visuals. Leave out work that changed nothing for the user. When words run short, cut from what happened before you cut from the action items.
Keep the whole reply well under 150 words, not counting visuals. When something is easier to grasp as a picture than as sentences, draw it: how a design or system works, a PR stack or dependency chain with each PR's state, a before and after of a fix, or options side by side. Never draw a status list or boxes with nothing connecting them. Never give a fact twice, in text or across visuals. Leave out work that changed nothing for the user. Never cut an action item or shrink one to stay under the word count — when words run short, cut from what happened instead.

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this is a hand-written sentence with an em dash, not upstream's. once #692 is ported, this line becomes upstream's #692 paragraph and #708 swaps in verbatim: "Never cut items or shrink them to stay under a word count: no count in place of a list, and no link in place of an item." don't keep a spirit-port here.

@caelaxie
caelaxie merged commit 7803b4b into main Oct 18, 2026
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@caelaxie
caelaxie deleted the sync-upstream-0.15.26 branch October 18, 2026 15:20
caelaxie added a commit that referenced this pull request Oct 18, 2026
<!-- CURSOR_AGENT_PR_BODY_BEGIN -->
ports upstream #692 (16541c6) + #708 sentence verbatim that #5 missed,
per portreview's review on #5
(#5 (review)).
adaptations kept: triggers: [user], /pstack:, xychart-beta. harness
install/list is blocked on missing devin auth.
<!-- CURSOR_AGENT_PR_BODY_END -->

<div><a
href="https://cursor.com/agents/bc-44778a16-2338-5d8e-a9d9-70a6a0525f7f?cursor_ref=pr_footer&cursor_cta=open_in_web"><picture><source
media="(prefers-color-scheme: dark)"
srcset="https://cursor.com/assets/images/open-in-web-dark.png"><source
media="(prefers-color-scheme: light)"
srcset="https://cursor.com/assets/images/open-in-web-light.png"><img
alt="Open in Web" width="114" height="28"
src="https://cursor.com/assets/images/open-in-web-dark.png"></picture></a>&nbsp;<a
href="https://cursor.com/background-agent?bcId=bc-44778a16-2338-5d8e-a9d9-70a6a0525f7f&cursor_ref=pr_footer&cursor_cta=open_in_cursor"><picture><source
media="(prefers-color-scheme: dark)"
srcset="https://cursor.com/assets/images/open-in-cursor-dark.png"><source
media="(prefers-color-scheme: light)"
srcset="https://cursor.com/assets/images/open-in-cursor-light.png"><img
alt="Open in Cursor" width="131" height="28"
src="https://cursor.com/assets/images/open-in-cursor-dark.png"></picture></a>&nbsp;</div>

Co-authored-by: Cursor Agent <[email protected]>
Co-authored-by: Kaitian Xie <[email protected]>
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