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docs(archive): session record for sustainabot #148 hand-port validation (#209)
## Summary Adds the human-readable session report and its machine-readable companion for the 2026-05-26 sustainabot ReScript→AffineScript hand-port validation work (Refs #148). - `docs/archive/SESSION-2026-05-26-sustainabot-148-validation.md` — human-readable session record. Goal, approach (parser-fix vs hand-port-rewrite decision rule), the 5 affinescript parser PRs + 1 gitbot-fleet hand-port PR, validation-oracle output, gotchas surfaced (HANDLE-as-fn-name, no-OCaml-float-ops), and out-of-scope follow-ups (#208). - `docs/archive/README.md` — table updated with the new entry. - `.machine_readable/SESSION-2026-05-26-148.a2ml` — structured companion. PR list with branch names + scopes, before/after validation counts, CI-status notes (incl. baseline noise), captured gotcha rules, next-gate identification, downstream work that unblocks after #148. The work itself ships in the PR queue (no source-file changes here). Issue #148 closure is owner-merge gated per the `ISSUE-CLOSURE` rule. ## Cross-refs - Refs #148, #206, #208 - Refs hyperpolymath/affinescript#370, #371, #372, #373, #376 ## Test plan - [x] Markdown renders correctly on GitHub preview - [x] A2ML file follows existing structure in `.machine_readable/STATE.a2ml` - [x] `docs/archive/README.md` table updated 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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‎.machine_readable/SESSION-2026-05-26-148.a2ml‎

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# SPDX-License-Identifier: MPL-2.0
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# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
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#
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# SESSION-2026-05-26-148.a2ml — sustainabot ReScript→AffineScript hand-port
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# validation session record. Machine-readable companion to
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# `docs/archive/SESSION-2026-05-26-sustainabot-148-validation.md`.
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[metadata]
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session-id = "2026-05-26-sustainabot-148"
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date = "2026-05-26T08:30:00Z"
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agent = "claude-opus-4-7"
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agent-context = "1M"
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issue = "hyperpolymath/gitbot-fleet#148"
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duration-hours = 1.5
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status = "complete-pending-owner-merge"
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[goal]
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description = """Reduce every parse error in the 13 sustainabot .affine
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files (4,939 LOC hand-ported from .res) to either type-check or
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Resolve.UndefinedModule. The latter is the acceptable residual (stdlib
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graph not loaded by single-file `check`; INT-02 territory)."""
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[scope.in]
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paths = [
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"bots/sustainabot/bot-integration/src/Analysis.affine",
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"bots/sustainabot/bot-integration/src/Config.affine",
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"bots/sustainabot/bot-integration/src/GitHubAPI.affine",
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"bots/sustainabot/bot-integration/src/GitHubApp.affine",
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"bots/sustainabot/bot-integration/src/Main.affine",
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"bots/sustainabot/bot-integration/src/Oikos.affine",
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"bots/sustainabot/bot-integration/src/Report.affine",
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"bots/sustainabot/bot-integration/src/Router.affine",
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"bots/sustainabot/bot-integration/src/Types.affine",
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"bots/sustainabot/bot-integration/src/Webhook.affine",
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"bots/sustainabot/bot-integration/src/tea/Cmd.affine",
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"bots/sustainabot/bot-integration/src/tea/Runtime.affine",
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"bots/sustainabot/bot-integration/src/tea/Sub.affine"
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]
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file-count = 13
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[scope.out]
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note = """SafeDOMExample.affine fixtures in 3 other bots
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(the-hotchocolabot, echidnabot, finishingbot) use a pre-stabilization
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AffineScript dialect (8+ grammar divergences). Tracked separately at
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gitbot-fleet#208; needs single dialect-migration PR, NOT parser
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changes."""
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filed-issue = "hyperpolymath/gitbot-fleet#208"
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[validation-oracle]
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command = "affinescript check <path>"
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pass-criteria = "parse layer succeeds — `Type checking passed` OR `Resolution error: (Resolve.UndefinedModule …)`"
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fail-criteria = "any line starting with `<path>:<line>:<col>: parse error: Syntax error`"
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[validation-oracle.before-session]
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files-passing = 0
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files-with-resolution-residual = 1 # tea/Sub.affine — only file simple enough to reach Resolution unaided
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files-with-parse-errors = 12
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[validation-oracle.after-session]
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files-passing = 0 # full typecheck not in scope — stdlib not loaded
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files-with-resolution-residual = 13
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files-with-parse-errors = 0
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[parser-prs]
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repo = "hyperpolymath/affinescript"
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count = 5
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conflict-cost-total = "+0 S/R, +0 R/R (parser builds at 21 S/R + 1 R/R, baseline unchanged)"
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prs = [
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{ number = 370, branch = "claude/parser-trailing-comma-148", scope = "trailing-comma in fn params + expr lists; effect-annotated lambda" },
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{ number = 371, branch = "claude/parser-fn-type-eff-arrow-148", scope = "fn-type with effect arrow `fn(A) -{E}-> B` in type position" },
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{ number = 372, branch = "claude/parser-builtin-qualified-paths-148", scope = "builtin/lowercase qualified paths + TOTAL field name" },
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{ number = 373, branch = "claude/lexer-underscore-idents-148", scope = "underscore-prefix idents `_key`/`_unused`" },
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{ number = 376, branch = "claude/parser-record-spread-148", scope = "record-update spread at start `#{ ..base, f: v }`" }
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]
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[handport-prs]
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repo = "hyperpolymath/gitbot-fleet"
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count = 1
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prs = [
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{ number = 206, branch = "claude/sustainabot-parse-fixes-148", scope = "OCaml-style float ops → unified ops; `fn handle` → `fn dispatch` (HANDLE is a keyword)" }
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]
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[ci-status]
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all-prs-real-signal = "green"
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known-baseline-noise = [
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"vscode-smoke (affinescript) — fails on every PR; npm 404 on @hyperpolymath/affine-vscode (affinescript#104)",
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"governance / Language / package anti-pattern policy (affinescript) — flags approved TypeScript exemptions"
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]
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[gotchas-captured]
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description = """Rules surfaced during the session that apply to ALL
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future .affine hand-ports (not just sustainabot). Captured in agent
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persistent memory."""
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rules = [
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{ name = "handle-is-keyword", body = "`handle` is HANDLE token, parse-fails as fn name. Rename to `dispatch`/`handle_request` on hand-port.", scope = "hand-port-rewrite" },
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{ name = "no-ocaml-float-ops", body = "`+. -. *. /.` never accepted. Mechanical hand-port-rewrite to unified `+ - * /`, never parser-fix.", scope = "hand-port-rewrite" }
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]
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[next-gate]
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type = "owner-merge"
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description = """All 6 PRs CI-green and merge-ready. Issue #148 is NOT
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auto-closed by any `Refs` keyword (ISSUE-CLOSURE rule). Owner-merge
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of the 6 PRs is the prerequisite to closing #148."""
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[downstream-blocked]
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description = "What unblocks after #148 closes (next-gate state):"
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items = [
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"Resolution → typecheck cross-module loader work (INT-02 in affinescript docs/TECH-DEBT.adoc)",
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"Bigger .res → .affine sweep via tree-sitter walker (affinescript#57 Phase 2)"
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]
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[artefacts]
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human-readable = "docs/archive/SESSION-2026-05-26-sustainabot-148-validation.md"
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issue-thread-comment = "https://github.com/hyperpolymath/gitbot-fleet/issues/148#issuecomment-4542225835"
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[session.signature]
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agent = "claude-opus-4-7"
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verified-by = "validation-oracle re-run on integrated branch with all 6 PRs cherry-picked"
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verified-at = "2026-05-26T09:30:00Z"

‎docs/archive/README.md‎

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| `FLEET-DEPLOYMENT-STATUS.md` | 2026-02-06 | Deployment status snapshot at the operational-handoff point. |
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| `NEW-PATTERNS-DEPLOYMENT-2026-02-06.md` | 2026-02-06 | Rollout report for 4 new Hypatia patterns across 14 supervised repos. |
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| `OUTSTANDING-WORK.md` | 2026-02-07 | Consolidated open-work list across the fleet ecosystem (later superseded by `READINESS.md` + per-bot `ROADMAP.adoc`s). |
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| `SESSION-2026-05-26-sustainabot-148-validation.md` | 2026-05-26 | sustainabot ReScript→AffineScript hand-port validation for #148: 6 PRs land all 13 `.affine` files at Resolution; conflict-neutral parser work + hand-port rewrites; gotchas for future hand-ports. |
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For the current state, see the repo-root `README.adoc`, `ROADMAP.adoc`,
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and `READINESS.md`.

‎docs/archive/SESSION-2026-05-26-sustainabot-148-validation.md‎

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<!-- SPDX-License-Identifier: MPL-2.0 -->
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<!-- SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell -->
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# sustainabot ReScript→AffineScript hand-port validation
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**Date**: 2026-05-26
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**Agent**: Claude Opus 4.7 (1M context)
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**Session**: Issue #148 — gitbot-fleet/bots/sustainabot/bot-integration/src `.affine` parse validation
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**Status**: Validation complete; 6 PRs filed; gates on owner-merge
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---
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## Goal
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Run `affinescript check` on the 13 hand-ported `.affine` files under
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`bots/sustainabot/bot-integration/src/` and reduce every parse error to
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either a successful type-check or to `Resolve.UndefinedModule` (the
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expected residual when single-file `check` doesn't load the stdlib
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graph — INT-02 loader-bridge territory, out of scope here).
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The 13 files (a 4,939 LOC migration from the original `.res` set):
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```
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src/Analysis.affine src/Main.affine src/Router.affine src/tea/Sub.affine
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src/Config.affine src/Oikos.affine src/Types.affine
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src/GitHubAPI.affine src/Report.affine src/Webhook.affine
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src/GitHubApp.affine src/tea/Cmd.affine
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src/tea/Runtime.affine
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```
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## Approach
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For each parse failure encountered, decide **parser-fix** (upstream
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`hyperpolymath/affinescript`, `lib/parser.mly`) vs **hand-port-rewrite**
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(this repo, the `.affine` source). Default:
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* **parser-fix** when the failing syntax is documented as part of the
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AffineScript language surface (ADR-008/009 / SETTLED-DECISIONS in the
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affinescript repo) and dropping it would create a gap.
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* **hand-port-rewrite** when the syntax is an OCaml/ReScript-ism the
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language never promised.
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Constraint on every parser-fix: zero new LR conflicts. Baseline is
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**21 shift/reduce + 1 reduce/reduce**; verified after every patch via
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`menhir --explain`.
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## Outcome
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All 13 files now reach **Resolution** (parser layer fully clear). The
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work bundled into 6 PRs across 2 repos:
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### Parser PRs (hyperpolymath/affinescript)
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| PR | Scope | Branch |
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|---|---|---|
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| [#370](https://github.com/hyperpolymath/affinescript/pull/370) | Trailing-comma in fn params + expr lists; effect-annotated lambda `fn() -{IO}-> M { … }` | `claude/parser-trailing-comma-148` |
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| [#371](https://github.com/hyperpolymath/affinescript/pull/371) | fn-type with effect arrow `fn(A, B) -{E}-> R` in type position | `claude/parser-fn-type-eff-arrow-148` |
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| [#372](https://github.com/hyperpolymath/affinescript/pull/372) | Builtin-type qualified paths (`Int::to_string`); lowercase-module qualified paths (`json::encode_object`); `total` as a record field name | `claude/parser-builtin-qualified-paths-148` |
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| [#373](https://github.com/hyperpolymath/affinescript/pull/373) | Underscore-prefix idents `_key`, `_unused` lex as a single LOWER_IDENT (bare `_` still lexes as UNDERSCORE) | `claude/lexer-underscore-idents-148` |
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| [#376](https://github.com/hyperpolymath/affinescript/pull/376) | Record-update spread at start `Record #{ ..base, override: x }` | `claude/parser-record-spread-148` |
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### Hand-port PR (hyperpolymath/gitbot-fleet)
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| PR | Scope | Branch |
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|---|---|---|
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| [#206](https://github.com/hyperpolymath/gitbot-fleet/pull/206) | OCaml-style float ops `/.`, `*.`, `+.`, `-.` → unified AffineScript `/`, `*`, `+`, `-`; `pub fn handle(...)` → `pub fn dispatch(...)` (HANDLE is a reserved keyword) | `claude/sustainabot-parse-fixes-148` |
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## Validation oracle (post-merge)
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```
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$ for f in bots/sustainabot/bot-integration/src/*.affine \
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bots/sustainabot/bot-integration/src/tea/*.affine; do
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affinescript check "$f"
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done
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Analysis.affine Resolution error: (Resolve.UndefinedModule …
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Config.affine Resolution error: (Resolve.UndefinedModule …
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GitHubAPI.affine Resolution error: (Resolve.UndefinedModule …
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GitHubApp.affine Resolution error: (Resolve.UndefinedModule …
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Main.affine Resolution error: (Resolve.UndefinedModule …
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Oikos.affine Resolution error: (Resolve.UndefinedModule …
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Report.affine Resolution error: (Resolve.UndefinedModule …
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Router.affine Resolution error: (Resolve.UndefinedModule …
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tea/Cmd.affine Resolution error: (Resolve.UndefinedModule …
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tea/Runtime.affine Resolution error: (Resolve.UndefinedModule …
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tea/Sub.affine Resolution error: (Resolve.UndefinedModule …
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Types.affine Resolution error: (Resolve.UndefinedModule …
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Webhook.affine Resolution error: (Resolve.UndefinedModule …
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```
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`Resolve.UndefinedModule` is the expected residual: the cross-module
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loader is tracked separately under INT-02 in
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`hyperpolymath/affinescript` `docs/TECH-DEBT.adoc`. Closing that gap is
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a different effort, not within #148.
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## Gotchas discovered (captured for future hand-ports)
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Two hand-port-rewrite rules surfaced that are worth documenting up-front
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for the broader `.res → .affine` walk (affinescript#57):
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1. **`handle` is a reserved keyword** in AffineScript (HANDLE token,
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used by the effect-handler expression form
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`handle body { handler_arms }`). It parses as a token, not an
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identifier, so `pub fn handle(...)` is a syntax error. The
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`field_name` rule allows `handle` contextually as a record field
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name (the surrounding COLON disambiguates), but no equivalent is
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safe in fn-decl name position without grammar conflict risk.
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*Workaround*: rename to `dispatch`, `handle_request`,
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`handle_event`, etc.
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2. **No OCaml-style float operators.** AffineScript uses unified `+`,
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`-`, `*`, `/` for both Int and Float (per
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`examples/lessons/01_hello.affine`: `subtotal * 0.08`). `+.`, `-.`,
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`*.`, `/.` are never accepted and must be rewritten on port. This
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is a hand-port-rewrite, not a parser-fix candidate — adding the
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OCaml form would create operator overlap for no semantic benefit.
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Both are recorded in the agent's persistent memory for the next session
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and are also captured as `Refs gitbot-fleet#148` commits in #206.
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## Out of scope (filed separately)
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3 byte-identical `SafeDOMExample.affine` fixtures
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(`bots/{the-hotchocolabot,echidnabot,finishingbot}/examples/`) parse-
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fail with a different shape: they use a **pre-stabilization AffineScript
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dialect** with 8+ grammar divergences from current. Tracked at
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[gitbot-fleet#208](https://github.com/hyperpolymath/gitbot-fleet/issues/208).
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Recommended disposition: a single dialect-migration PR (or deletion if
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the examples are unreferenced — `grep -r SafeDOMExample` will say).
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## Conflict-cost on the parser
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All 5 upstream parser PRs together net **zero new LR conflicts**: the
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parser builds at 21 S/R + 1 R/R, identical to the pre-patch baseline.
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The conflict-neutrality discipline is required by ADR-012 (Grammar
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Changes Are Correctness Assertions) in the affinescript repo.
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## Status comment on the tracking issue
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A consolidated status post is on [gitbot-fleet#148](https://github.com/hyperpolymath/gitbot-fleet/issues/148#issuecomment-4542225835)
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linking each of the six PRs, showing the validation oracle output, and
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noting INT-02 as the next gate. The issue is **not** auto-closed by
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any `Refs` keyword — that's an owner-merge action per the
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`ISSUE-CLOSURE` rule in the repo's CLAUDE.md.
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---
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*Generated 2026-05-26 by Claude Opus 4.7 (1M context).*

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