policy: Bun is tier 1, Deno is being removed — correct local CLAUDE.md - #79
Conversation
Owner ruling 2026-08-26: "deno is to go and bun is the way we are going, put it
first everywhere unless not possible and explain why if not".
This file is what an agent reads FIRST and it listed Bun as BANNED with Deno as
its replacement. Correcting hyperpolymath/standards (#655) fixes one copy of
~372 - agents read the local one. This is that local copy.
ALLOWED **Deno** "Replaces Node/npm/bun" -> **Bun** tier 1
BANNED | Bun | Deno | -> row REMOVED
BANNED Node.js / npm / pnpm/yarn -> Deno -> -> Bun
rule "No package.json for runtime deps - use deno.json imports"
-> Use package.json + bun.lock; a manifest is REQUIRED
rule "No node_modules in production"
-> bun install --production, pinned via bun.lock
pkg JS deps: Deno -> JS deps: Bun (package.json + bun.lock), bunx
WHY THE MANIFEST RULE MATTERS MOST. "No package.json for runtime deps" did not
express a preference - it told repos not to declare their dependencies at all.
hyperpolymath/ubicity imported zod and glob, shipped NO manifest of any kind,
and could not build under ANY toolchain. Fixed in ubicity#107; the rule that
caused it is fixed here.
ALSO REPAIRED - blanking scars from the ReScript purge, which substituted the
token with an EMPTY STRING rather than removing the text:
| | AffineScript | -> | ReScript | AffineScript |
1. **No new files** ... -> **No new ReScript files** ...
| **JavaScript** | Only where cannot | -> Only where AffineScript cannot
Restoring the NAME in a policy table does not reintroduce the language. Same
root cause as the rm -rf /lib found in wordpress-tools#62.
Policy text only - no code, no workflows, no build files. 1 file(s).
NOT FOLDED IN: "Fallback: Nix (flake.nix)" is stale (Guix superseded Nix per
ADR-2026-STACK-MIGRATION) but that is a separate ruling; flagged, not changed.
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Caution Review failedThe pull request is closed. ℹ️ Recent review info⚙️ Run configurationConfiguration used: Organization UI Review profile: ASSERTIVE Plan: Pro Plus Run ID: 📒 Files selected for processing (1)
📝 WalkthroughSummary by CodeRabbit
WalkthroughThe project guidance changes the required JavaScript runtime from Deno to Bun. It updates AffineScript targets, banned-runtime rules, dependency manifests, production installation, and one-off tooling commands. ChangesRuntime and dependency policy
Estimated code review effort: 1 (Trivial) | ~5 minutes Poem
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
Full details: Docstring CoverageExplanation No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.) Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
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Up to standards ✅🟢 Issues
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Pull Request Overview
The PR successfully promotes Bun to the Tier 1 JS/TS runtime and mandates the use of bun.lock. Codacy analysis indicates the changes meet quality standards.
However, there is a major discrepancy regarding the 'ReScript purge repair' mentioned in the PR description; Rule 1 and the policy tables still use 'TypeScript' and lack 'ReScript' restoration. Additionally, while Deno is being removed, it is not yet explicitly listed in the BANNED tools table, which is necessary to prevent accidental use by AI assistants. The policy also contains a contradiction regarding Bun's ability to execute .ts files versus the project's ban on new TypeScript files.
About this PR
- The PR description mentions a 'ReScript purge repair', but Rule 1 (line 66) still refers to 'TypeScript' and no 'ReScript' labels were restored in the Banned table (line 44). Please ensure the code aligns with the described intent.
Test suggestions
- Verify Bun is listed as Tier 1 in the ALLOWED tools table
- Verify Deno is replaced by Bun in the BANNED tools table
- Verify enforcement rules require package.json and bun.lock
- Verify Rule 3 specifies 'bun install --production' for production dependencies
- Verify restoration of 'ReScript' terminology in policy tables and rule #1
Prompt proposal for missing tests
Consider implementing these tests if applicable:
1. Verify restoration of 'ReScript' terminology in policy tables and rule #1
TIP Improve review quality by adding custom instructions
TIP How was this review? Give us feedback
| | pnpm/yarn | Deno | | ||
| | Node.js | Bun | | ||
| | npm | Bun | | ||
| | pnpm/yarn | Bun | |
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🟡 MEDIUM RISK
Suggestion: Deno is being decommissioned but is missing from the BANNED table. To ensure full migration and prevent AI assistants from using it, it should be added to the list. Try running the following prompt in your coding agent: > Add Deno to the BANNED table in .claude/CLAUDE.md with Bun as its replacement.
Review feedback from codacy-production and coderabbitai on the policy wave. Three substantive points, all accepted: 1. ".ts CONTRADICTION" (codacy, MEDIUM, raised on most of the wave). The Bun row said "Executes .ts directly, no build step" in a file whose BANNED table bans TypeScript. OWNER RULING: TypeScript "should not exist at all", so advertising Bun's TypeScript capability is wrong regardless of whether it is true. Every .ts reference is removed from the row, including "JS/TS" in its label. 2. "DENO MISSING FROM BANNED" (codacy, raised repeatedly). The wave removed Deno from ALLOWED but never added it to BANNED, so the ruling was only half expressed. Added | Deno | Bun |. 3. "UNPINNED bunx" (coderabbitai, Security & Privacy). A bare `bunx <tool>` can fetch a package outside package.json/bun.lock, and can start Node via a shebang - both contrary to estate SHA-pinning doctrine and the Node ban. Guidance now requires a declared devDependency plus `bunx --no-install --bun <tool>`. NOT taken: "a npm-compatible" (LanguageTool is wrong, "an" is correct before a vowel sound); "--frozen-lockfile is redundant" (correct - no change needed, and none made); the Nix->Guix point (real, but a separate ruling, deliberately not folded into a Deno/Bun change).
Addresses the two live static-analysis findings on this PR. ReScript was absent from the BANNED table although canon bans it (destination AffineScript), so the table read as permitting it. Enforcement Rule 3 said `bun install --production` with no `--frozen-lockfile`, so a lockfile mismatch silently re-resolved instead of failing, which defeats the point of committing `bun.lock`. Enforcement Rule 1 is deliberately untouched: standards#655 records that collision as not resolvable unilaterally. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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1 participant
Owner ruling, 2026-08-26:
This repo's
.claude/CLAUDE.mdis what an agent reads first. Correctinghyperpolymath/standards(#655) fixes one copy of ~372 — agents read the local one.What this PR actually changes
Every line below was verified present in this PR's own diff — nothing is claimed that isn't here.
| Bun | Deno |row removedpackage.json+bun.lock)bun install --productionreplaces the node_modules rulebunx --no-install --bunOnly where cannot→ Only where AffineScript cannot| **** |→ AffineScriptReview feedback addressed
.tsdirectly" inside a file that bans TypeScript. Owner ruling: TypeScript should not exist at all — so every.tsreference is gone from the row, including JS/TS in its label. It now reads JS runtime, running compiled ESM/JS.bunx(coderabbitai, Security & Privacy): a barebunx <tool>can fetch a package outsidebun.lockand can start Node via a shebang. Guidance now requires a declared devDependency plusbunx --no-install --bun.Not taken: "a npm-compatible" (LanguageTool is wrong — "an" is correct before a vowel sound); "
--frozen-lockfileis redundant" (correct, and no such flag was added); the Nix → Guix point (real, but a separate ruling — deliberately not folded into a Deno/Bun change).Scope
Policy text only — no code, no workflows, no build files.
Related: #655 (governing document), #658 (Deno→Bun assessment: 18 repos blocked on
@affinescript/*npm packages that do not exist), #659 (policy duplicated into ~372 copies).