feat(plugins): WASM Node.js polyfills for node:fs, node:path, node:os#20
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…e:os Enables Tier 1 WASM plugins to use core Node.js APIs through virtual implementations backed by host functions: - 5 new host functions: astrid_fs_exists, astrid_fs_mkdir, astrid_fs_readdir, astrid_fs_stat, astrid_fs_unlink (all security-gated via resolve_within_workspace) - Shim polyfills: _virtualFs (readFileSync, writeFileSync, existsSync, mkdirSync, readdirSync, statSync, unlinkSync), _virtualPath (join, resolve, dirname, basename, extname, normalize, isAbsolute), _virtualOs (homedir, platform, tmpdir) - require() polyfill dispatching node:fs/path/os to virtual implementations - Transpiler relaxation: imports from polyfilled modules (node:fs, node:path, node:os) are now allowed and converted to require() calls via ESM->CJS - Updated QuickJS shim dispatch table from 7 to 12 host functions Closes #12
joshuajbouw
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February 16, 2026 12:58
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….1.0 Points the wit submodule at astrid-runtime/wit@278dbca (PR #20), so the committed wit-staging matches the pinned contract and the CI drift check passes. Pairs with the dual-version host serving in this branch. Claude-Session: https://claude.ai/code/session_01NvX2tE7tgXuCRevqqiXTGU
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Summary
astrid_fs_exists,astrid_fs_mkdir,astrid_fs_readdir,astrid_fs_stat,astrid_fs_unlink) — all security-gated throughresolve_within_workspace()+SecurityGate_virtualFs,_virtualPath,_virtualOspolyfill objects in the JS shim, with arequire()polyfill that dispatchesnode:fs,node:path,node:osto themrequire()callsTest Plan
cargo test -p openclaw-bridge -- --quiet— transpiler tests for polyfilled import acceptance, ESM→CJS conversion of import statements, rejection of non-polyfilled modulescargo test -p astrid-plugins -- --quiet— host function ordering test verifies all 12 functions are correctly indexedimport { readFileSync } from "node:fs"— should succeed (previously rejected as unresolved import)Closes #12