feat: allow configurable Cohere API URL in CohereReranker by davidjrh · Pull Request #11 · danny-avila/agents

davidjrh · 2025-08-11T16:01:42Z

This pull request makes a small but important change to the CohereReranker class to improve configurability of the Cohere API endpoint.

The URL used for the Cohere rerank API in CohereReranker can now be overridden by setting the COHERE_URL environment variable; if not set, it defaults to the original Cohere endpoint.

This allows to specify a different base URL for Cohere, such as the ones provided by the Azure AI Foundry.

The public LocalExecutionConfig contract documents `maxSpawnedBytes: 0` as "no cap", but the kill check `totalSpawnedBytes > hardKillBytes` triggered on the very first byte when the cap was zero. Skip the kill path entirely when `hardKillBytes <= 0` so configs that explicitly opt out of the OOM backstop behave as documented.

@deprecated

, #5, #7, #9, #10, #11) Comprehensive-review audit findings, fixed in one pass: #1 (attachments full-file MIME sniff): switch classifyAttachment to open() + 12-byte header read for sniffing; only readFile() the full buffer when we're about to embed. A 9 MB image now allocates 12 bytes for sniffing instead of 9 MB. #3 (fallback walker SKIP_DIRS too small): expanded the Node-fallback walker's skip set to cover dist/build/.next/.cache/__pycache__/ .venv/venv/target/vendor/coverage/.tox/.mypy_cache and friends. ripgrep itself respects .gitignore so this only affects the fallback. #5 (dynamic fs/promises import): replaced two `await import('fs/ promises').then(...)` calls in CompileCheckTool with a static `import { readFile, stat } from 'fs/promises'` per AGENTS.md. #7 (test-only resets in public API): added @internal JSDoc to all three `_reset*ForTests` functions so IDE autocomplete signals they aren't part of the SDK surface. (The leading underscore was convention-only; @internal is the standard tag.) #9 (legacy fields missing @deprecated): added @deprecated tags to `LocalExecutionConfig.cwd` and `allowOutsideWorkspace` pointing to their workspace.* replacements. #10 (dead lexicallyInside compute in workspace policy hook): dropped the unused variable. Realpath is the source of truth for both the symlink-escape and alternate-mount cases; the lexical check provides no information so we don't pay for it. #11 (voided unused imports in pi comparison script): removed the `void readdir; void cp;` workaround and the dead imports they were silencing. Bonus: also addressed the comprehensive review's #2 (bitwise OR) by verifying it was a misread — the code uses `||`, not `|`. Manual review's reading was wrong; no fix needed. Larger findings addressed: #4 (no editStrategies tests): added `src/tools/local/__tests__/editStrategies.test.ts` with 12 cases covering exact / line-trimmed / whitespace-normalized / indentation-flexible match boundaries, start/end-of-file matches, unicode content, multi-line needles spanning blank lines, ambiguous-match rejection, and applyEdit semantics. #12 (no FileCheckpointer tests): added `src/tools/local/__tests__/FileCheckpointer.test.ts` with 6 cases covering capture+rewind happy path, idempotent capture, absent-file rewind (deletion), multi-file rewind, oversize-file tracking-but-not-snapshotting, and rewind across a deleted parent directory. Performance: #8 (lineWindow split-whole-file): replaced `content.split('\\n')` in `lineWindow` with a newline-walk that's O(start + limit) instead of O(file). For a 10 MB file with `offset: 1, limit: 10` this drops from "split the whole file into millions of strings" to ~10 indexOf calls. Falls back to the simple split when no limit is supplied. Deferred: #6 (spill files never cleaned) needs a Run-lifecycle hook to run cleanup; tracked separately rather than fixed inline.

* feat: add local execution engine * feat(local-engine): hardening + ergonomics follow-ups Adds the follow-up items flagged in the design comparison so the local engine ships with a defensible default posture. Security & correctness - Bridge bearer token: per-Run 256-bit token; programmatic Python and bash callers send `x-librechat-bridge-token`; server uses `timingSafeEqual`. Stops cross-process listeners on the same loopback port from invoking SDK tools. - Symlink-aware workspace path: new `resolveWorkspacePathSafe()` walks up to the nearest existing ancestor, realpaths it, and rejects containment escapes — covers `write_file` to a brand-new path without false positives on `/tmp -> /private/tmp` style ancestors. - Read tool guards: stat-cap (default 10 MiB, configurable via `local.maxReadBytes`), NUL-byte binary detection on the first 8 KiB before reading the rest, returns descriptive stubs. - Local engine warns once per process when it runs without `@anthropic-ai/sandbox-runtime` wrapping so the no-sandbox default stays loud in CI/server logs. Validation - New `bashAst` config: `'off' | 'auto' | 'strict'` heuristic categorical-hazard pass over the quote-stripped command (command substitution, zsh privileged builtins, `/proc/<pid>/environ` reads, `IFS=` injection, hex-escape obfuscation, `source $VAR`, plus `eval`/`exec` denied in strict). Forward-compatible name for a future tree-sitter-bash AST drop-in. Ergonomics - File checkpointing: `LocalFileCheckpointerImpl` snapshots pre-write contents for `write_file`/`edit_file` and rewinds them on demand. `createLocalCodingToolBundle` returns the checkpointer alongside the tools when `local.fileCheckpointing: true`. - Pluggable spawn seam: `LocalExecutionConfig.spawn?: LocalSpawn` lets callers route every command through SSH/containers/remote runners without forking the engine. - Ripgrep fallback: `grep_search` and `glob_search` now probe for `rg` once per process and fall back to a Node-side walker + JS regex when ripgrep isn't on PATH; the old hard requirement is gone. Tests - 20 new unit tests covering AST findings, sandbox-off warning latch, checkpointer round-trip and file deletion, binary-file refusal, oversize stub, symlink escape, ripgrep fallback, and bridge auth rejection. Existing 109 tests still pass. * feat(toolnode): fire PreToolUse/PostToolUse/PostToolUseFailure on direct path Before this change, in-process tools added to `directToolNames` (every graphTool with a real implementation, including the new local-engine tools) skipped the hook lifecycle entirely. Only schema-only tools that round-tripped through the host event-dispatch path actually fired PreToolUse/PostToolUse/PostToolUseFailure/PermissionDenied. That meant `createToolPolicyHook`, the new HITL `'ask'` flow, and PostToolUse output rewriting all silently no-op'd on direct tools — including every `bash`/`code`/`edit_file`/`write_file` from the local engine. This adds `runDirectToolWithLifecycleHooks(call, config, batchContext)` which wraps `runTool` with the same hook semantics `dispatchToolEvents` uses for the single-call case, and routes the three direct-call sites in `run()` through it. Behavior: - Fast path: when the registry has none of PreToolUse / PostToolUse / PostToolUseFailure registered for this run, falls through to `runTool` with zero overhead. No regression for callers without hooks. - PreToolUse: pre-resolves args (matching the event path), fires the hook with resolved args. - `decision: 'deny'` → synthesizes a Blocked error ToolMessage and fires PermissionDenied (observational). - `decision: 'ask'` → fail-closed deny regardless of `humanInTheLoop.enabled`. The event path handles 'ask' via LangGraph's interrupt(), which requires restructuring the direct invoke path; until that lands, returning 'ask' on a direct tool blocks the call (strict improvement vs. ignoring the hook entirely). A one-time warning fires when HITL is enabled, so hosts notice the gap. - `updatedInput` → applied to the call before runTool; runTool's placeholder resolution is idempotent on already-resolved args. - PostToolUse: when runTool returns a non-error ToolMessage, fires PostToolUse and applies `updatedOutput` (preserving id/name/status). - PostToolUseFailure: when runTool returns a status='error' ToolMessage, fires the failure hook (observational); the original error continues to propagate. PostToolBatch participation across direct + dispatched outcomes is intentionally out of scope: the batch hook accumulates inside dispatchToolEvents and is fired at the end of its scope, and merging direct-call outcomes into that aggregation crosses the two paths' result-shaping logic. Left as a follow-up. 8 new unit tests in directToolHooks.test.ts cover deny+PermissionDenied, ask fail-closed, allow, updatedInput, updatedOutput, PostToolUseFailure, no-hooks fast path, and a mixed batch where one direct call denies and the sibling runs. Total non-API test count: 1163 -> 1171 passing. * chore(scripts): add live-API smoke scripts for the local engine Four scripts that exercise the local execution engine end-to-end with a real LLM provider (matching the convention in src/scripts/*). Each spins up a temporary workspace, runs the graph, then dumps observable state so the behavior under test is visible in the console. - local_engine.ts — baseline e2e: bash + write_file + read_file + edit_file + list_directory in a single multi-step task. Sets `bashAst: 'auto'` so the categorical-hazard pass is exercised. - local_engine_ptc.ts — `run_tools_with_code` (Python) calling write_file / read_file / edit_file through the localhost bridge in a single call. The bridge token auth (timingSafeEqual) is on by default for every Run, so this also exercises that path. - local_engine_hooks.ts — direct-path hook integration: registers a `createToolPolicyHook` that denies write_file / edit_file plus an explicit PostToolUse that prefixes every successful tool result with "[reviewed]". Asks the model to write then read; the write must be blocked, the read must come back tagged. Also asserts blocked.txt does not land on disk. - local_engine_checkpointer.ts — builds the local coding tools via `createLocalCodingToolBundle({ fileCheckpointing: true })` so the host keeps a handle on the checkpointer, lets the model edit two seeded files, then calls `rewind()` and verifies originals come back. Exits non-zero if rewind didn't restore both files. npm scripts added for each: `local`, `local:ptc`, `local:hooks`, `local:checkpointer`. All four typecheck clean (`tsc --noEmit`). * fix(graph): pass hookRegistry on the non-event-driven path Live integration test (`npm run local:hooks`) surfaced that hooks weren't actually firing on local-engine tools when used with a plain `graphConfig: { type: 'standard' }` (no `agentContext.toolDefinitions`). Reason: `Graph.ts` only forwarded `hookRegistry` and `humanInTheLoop` to ToolNode in the event-driven branch — the legacy non-event-driven branch dropped both, so the policy hook silently no-op'd and a `write_file` that the script's `createToolPolicyHook` was supposed to deny landed on disk. Two changes: 1. `StandardGraph.createToolNode` now passes `hookRegistry` and `humanInTheLoop` in BOTH branches. Hooks are conceptually orthogonal to whether tools dispatch as events or invoke in process; only the event path was historically wired. 2. `ToolNode.run`'s non-event-driven `else` branch now invokes `runDirectToolWithLifecycleHooks` instead of `runTool` directly, so PreToolUse / PostToolUse / PostToolUseFailure / PermissionDenied fire the same way they do on the event-driven mixed-batch path. The helper still falls through to `runTool` on the no-hooks fast path, so callers without hooks pay zero overhead. Verified by re-running `npm run local:hooks`: - PermissionDenied fired 1 time(s) for write_file with the policy reason - PostToolUse saw read_file (the allowed read got the [reviewed] tag) - blocked.txt landed on disk? false (expected: false) Also re-ran the full non-API jest suite — 1171 passing, no regressions. * feat(local-engine): coding-tool parity push (fuzzy edit, diff, BOM/EOL, overflow) Live cross-comparison against claude-code, pi-mono, and opencode (sst) surfaced four meaningful gaps in the foundation tools. This commit closes them; LSP integration and apply_patch (multi-file) are larger and stay as documented follow-ups. Edit fuzzy matching ------------------- Our edit_file required exact `oldText` match, so a single mistyped space would force the LLM to re-read and retry. New `editStrategies.ts` walks a four-stage chain — exact, line-trimmed, whitespace-normalized, indentation-flexible — stopping at the first strategy that locates EXACTLY ONE match. The matched on-disk slice is then literally replaced with `newText`; we never modify newText. The strategy that fired is surfaced in the tool result's `strategies` metadata so callers can see when fuzzy fallback kicked in. Inspired by opencode's nine-strategy chain; kept to the four highest-yield strategies for a first cut, room for more (block-anchor + Levenshtein etc.) as needed. Unified-diff output on edit/write --------------------------------- `edit_file` and `write_file` now embed a unified diff in the ToolMessage so the model sees what actually changed instead of the prior `Applied 1 edit(s)` blob. Uses npm `diff`'s `createTwoFilesPatch` with 3 lines of context, capped at 4 KB so large rewrites don't blow context. BOM + line-ending preservation ------------------------------ New `textEncoding.ts`: - `decodeFile` strips and remembers UTF-8 BOM and CRLF/LF newline. - `encodeFile` reapplies them on write. `edit_file` / `write_file` now read the file, decode to LF + remember, operate, and re-encode on write. Verified by tests: editing a CRLF file keeps CRLF; overwriting a BOM file keeps the BOM. Bash output overflow → temp file -------------------------------- `spawnLocalProcess` previously truncated overflowing output in place. Now: when total bytes exceed 2× `maxOutputChars`, the FULL stdout/stderr is written to a temp file (`/tmp/lc-local-output-*.txt`) and the path is appended to the formatted output as `full_output_path: …`. The model can then `bash tail -n N <path>` (or `grep`) to inspect specifics it actually needs. Mirrors pi-mono's and opencode's overflow handling. New deps -------- - `diff@9` and `@types/diff@7` — the canonical TS diff lib opencode uses too, MIT-licensed. Tests ----- Added unit tests for each new behavior — 5 new cases for fuzzy matching, diff embedding, CRLF preservation, BOM preservation. Ran the full non-API jest suite: 1176 passing (was 1171). Ran all four live integration scripts (`local`, `local:hooks`, `local:checkpointer`, `local:ptc`) end-to-end against the real Anthropic API; all four green and the diff payload now shows up in the model-visible tool results. * feat(local-engine): inline image/PDF attachments in read_file Closes the last "Close now" parity gap: read_file can now return image and PDF files as inline `MessageContentComplex[]` content blocks so vision-capable models actually see the bytes, instead of getting our old "binary file" stub. New module ---------- src/tools/local/attachments.ts - Magic-byte sniff for the five formats we care about (PNG, JPEG, GIF, WebP, PDF). Inlined the signatures rather than pulling in `file-type` (ESM-only, awkward under ts-jest); LibreChat's api/server/utils/files.js takes the same approach but uses the package since it's a CJS-OK Node server. - Returns a typed Attachment union that the read tool branches on: image -> image_url block, pdf -> image_url block (for Anthropic's PDF-as-data-url path), oversize -> stub, binary -> stub, text-or-unknown -> falls through to the existing line-window read. - Configurable via two new fields on `LocalExecutionConfig`: - `attachReadAttachments`: 'off' (default) | 'images-only' | 'images-and-pdf'. Defaults `'off'` to preserve current behavior; hosts opt in when their model is vision-capable. - `maxAttachmentBytes`: pre-encoding size cap (default 5 MiB) that bounds the post-base64 token cost. Plumbing -------- - read_file branches on attachment.kind. For an image, it returns `[ [textBlock, imageUrlBlock], { artifact } ]`. LangChain's Anthropic adapter (verified at node_modules/@langchain/anthropic/dist/utils/message_inputs.js) preserves image_url blocks inside `tool_result` content arrays; OpenAI Chat Completions accepts them on vision models too. The Responses API flattens to text on the wire (function_call_output is string-only) which is the safe degrade. - The textBlock that goes alongside the image_url carries the filename/mime/byte count so non-vision models still get useful signal. Tests ----- 4 new unit cases: - default behavior: still returns the binary stub - images-only: returns array content with `image_url` data URL + artifact { mime: 'image/png', attachment: 'image' } - oversize: caps embedding past `maxAttachmentBytes` -> "Refusing to embed" stub - text files unaffected when embedding is enabled 29 LocalExecutionTools tests pass; 1180 non-API tests overall. Live verification ----------------- New `npm run local:image` script: 1. Copies a real PNG (the macOS Certificate Assistant droppedImage) into a temp workspace. 2. Asks the agent to `read_file` it and describe what's in it. 3. Inspects the run's ToolMessage to confirm the content is `[textBlock, imageBlock]` with a `data:image/png;base64,...` URL. Live run against real Anthropic Sonnet: ToolMessage(name=read_file, content=[text,image_url] url=data:image/png;base64,iVBORw0KGgo…) Image attachment landed in tool result: true ✔ ASSISTANT: "The image shows a blank certificate template with a light blue border. The word 'Certificate' appears at the top in an elegant, cursive script font. There's a decorative flourish or underline beneath the text, and a gold/yellow seal or badge decoration in the lower right portion..." That's the actual content of the source PNG — vision is wired through end-to-end. * feat(local-engine): post-edit syntax check + compile_check tool The two cheap "tell-the-agent-when-it-broke-the-file" alternatives I called out as the pragmatic substitute for full LSP integration. Both are opt-in. 1. Post-edit syntax check ------------------------- New `local.postEditSyntaxCheck: 'off' | 'auto' | 'strict'` (default `'off'`). After every successful `edit_file` / `write_file`, runs a fast per-file syntax checker keyed on extension and appends any error to the tool result so the model self-corrects on the next turn without a separate read round-trip: - `.js` / `.mjs` / `.cjs` / `.jsx` -> `node --check <file>` - `.py` / `.pyw` -> `python3 -m py_compile` - `.json` -> `JSON.parse` (in process) - `.sh` / `.bash` -> `bash -n <file>` `'auto'` appends `[syntax-check warning ...]` to the tool result and returns success. `'strict'` throws the error so the next turn must react. Each checker probes once for tool availability and silently skips if missing. TypeScript per-file syntax check is intentionally not in this list: per-file `tsc` is slow and only catches a small fraction of TS issues without type information. Use `compile_check` (below) for that. 2. compile_check tool --------------------- New tool auto-bound when `engine: 'local'` and `includeCodingTools` is on. Lets the agent ask "did my change break anything?" without us shipping a real LSP client. Auto-detection (first hit wins): - tsconfig.json or package.json[typescript] -> `npx --no-install tsc --noEmit` - Cargo.toml -> `cargo check --message-format=short` - go.mod -> `go vet ./...` - pyproject.toml/setup.py with mypy -> `python3 -m mypy .` - pyproject.toml/setup.py without mypy -> `compileall .` - none of the above -> tells the agent "no toolchain" Honours `local.compileCheck.command` and `compile_check.command` arg overrides; honours `local.compileCheck.timeoutMs` (default 120s). Output is truncated through the standard local-engine output cap and spills overflow to a temp file like the bash tool does. Returns exit-code-aware `PASSED`/`FAILED` headline + body. Tests ----- 8 new unit cases: - JS/JSON broken/valid round-trip - returns null for unknown extensions - write_file appends `[syntax-check warning ...]` in `auto` - write_file in `strict` throws - compile_check reports "no recognised project marker" in an empty workspace - compile_check honours an explicit command override and reports exit codes 37 LocalExecutionTools tests pass; 1188 non-API tests overall. Live integration ---------------- New `npm run local:compile` script that: 1. Seeds a tiny TS workspace (tsconfig.json + index.ts). 2. Asks Anthropic Sonnet to write a broken JS file (post-edit syntax-check warns) -> fix it -> write a broken TS file with a real type error -> call compile_check (must FAIL with `error TS2322`) -> fix it -> call compile_check again (must PASS). Live run, end-to-end: - `[syntax-check warning via node --check]` appended to write_file - First compile_check: FAILED via `npx --no-install tsc --noEmit` (exit=2): `broken.ts(1,14): error TS2322: Type 'string' is not assignable to type 'number'.` - Second compile_check (after edit_file fix): PASSED - Both assertions ✔. Other live scripts (local, local:hooks, local:checkpointer, local:ptc, local:image) still green. * chore(scripts): side-by-side comparison harness vs pi-mono `npm run compare:pi` runs four identical tasks against pi-mono's CLI and our local engine in parallel temp workspaces using the same model (claude-sonnet-4-5 by default). Captures: tool-call shape, wall time, input/output/cache tokens, and verifies the workspace ended in the expected state. Tasks ----- - T1 simple-edit : single literal substitution in greet.py - T2 fuzzy-edit : edit a file with trailing whitespace + tabs; exercises both agents' fuzzy-match recovery - T3 syntax-error-fix : pre-seeded broken JS; ours has post-edit syntax check, pi has to discover via bash - T4 type-error-fix : pre-seeded TS file with a real type error in a tiny tsconfig project; ours has compile_check, pi has bash + tsc Pi runner spawns `node $PI_BIN --print --mode json --no-session --provider anthropic --model <model>` and parses its JSON event stream. Ours uses Run.create with `engine: 'local'` and walks the final conversation. PI_BIN defaults to ~/Projects/pi-mono/packages/coding-agent/dist/cli.js. Live results (real Anthropic, Sonnet 4.5) ----------------------------------------- task metric pi ours T1 simple-edit verify ✔ ✔ wall 8.4s 11.0s tool calls 2 2 output tok 313 281 T2 fuzzy-edit verify ✔ ✔ wall 16.1s 7.2s tool calls 2 2 output tok 384 246 T4 type-error-fix-loop verify ✔ ✔ wall 23.5s 13.6s tool calls 6 4 output tok 805 397 T3 syntax-error-fix verify ✔ ✔ wall 16.2s 11.7s tool calls 3 4 (note: ours used 1 bash, pi used 2) output tok 371 503 Both agents 4/4 verify ✔. Ours wins wall-time on 3/4 tasks, output tokens on every task, and tool-call count on T4 (compile_check short-circuits the bash+read+bash loop pi did). Open follow-up surfaced by the harness: pi reports thousands of cacheRead tokens per turn (Anthropic prompt cache rebate), ours reports zero. We're paying full rate for the system+tools prefix on every turn. Not a regression introduced here, but worth its own PR to wire prompt caching on the Anthropic adapter. * chore(scripts): compare:pi — caching enabled, +2 tasks, +variance Updates to the side-by-side harness based on first-run findings. 1. Anthropic prompt caching wired on our side ----------------------------------------------- The first comparison reported ours' cache_read=0 — pre-existing PR clarification: caching IS supported (`addCacheControl` + agent context's `hasAnthropicPromptCache()`), but it's gated on `clientOptions.promptCache === true`. The harness's first cut set that on `graphConfig.clientOptions`, but `Run.createLegacyGraph` (src/run.ts:156) destructures `llmConfig` and rebuilds `agentConfig.clientOptions` from it — `graphConfig.clientOptions` is silently dropped on the standard path. So in this harness we set `promptCache: true` on the llmConfig itself. After the fix, ours reports real cache_read / cache_creation per turn. Caching works. 2. New tasks ------------ - T5 multi-file-rename : rename `calc_total` → `calculateTotal` across src/lib.ts, src/index.ts, src/index.test.ts. Tests how each agent finds + applies the rename. - T6 image-read-and-describe (ours-only): copies a real PNG into the workspace (macOS Certificate Assistant icon) and asks the model to describe it. Exercises our `attachReadAttachments: 'images-only'` end-to-end. pi has no equivalent and is skipped via the new `skip: 'pi'` field. 3. Variance support ------------------- COMPARE_ITERS=N runs each task N times per side and reports the mean. Skipped tasks count cleanly (no false N/A entries). The verify check now force-fails when a runner errored, so a soft verify (e.g. T6's "file-still-on-disk" check) can't mask a real provider rejection. 4. Cost computation ------------------- We now compute our cost from the same per-turn breakdown using Sonnet 4.5 pricing ($3/$15 per Mtok input/output, $3.75 cache write, $0.30 cache read), so the cost columns are directly comparable. Live results (N=2) ------------------ Functional: pi 10/10 ✔, ours 12/12 ✔ (T6 ours-only adds 2). Wall time: ours wins all 5 shared tasks (~30% faster on average). Tool calls: ours fewer or equal on every shared task. Output tokens: ours fewer on every shared task. Cost: ours is ~6× more expensive per task even with caching on. Why the cost gap survives caching --------------------------------- Per-turn "input new" tokens: pi (T1): 35 ours (T1): 28298 pi (T4): 76 ours (T4): 48630 Pi only sends the new turn payload (~35 tokens); ~the entire system prefix and tool defs are cache-hits. Ours sends ~28k tokens of new input per turn even with caching on, which strongly suggests our cache prefix isn't covering tool definitions, OR the breakpoint position isn't matching across turns. Worth a dedicated PR to tune the cache breakpoints in `addCacheControl` / `AgentContext.systemRunnable` so tool defs sit inside the cached prefix; this will close the cost gap considerably. The harness made this gap impossible to miss — the entire reason for the cross-comparison. * feat(cache): tool-prefix cache breakpoint + harness accounting fix Two related changes; second one was the bigger win. 1. Tool-prefix cache breakpoint (Anthropic) ------------------------------------------- New `partitionAndMarkAnthropicToolCache` helper at src/messages/anthropicToolCache.ts. When `clientOptions.promptCache === true` and the provider is Anthropic, we now: - Stable-partition the bound tool list into [static, deferred] using `defer_loading` from `agentContext.toolDefinitions`. - Stamp `cache_control: { type: 'ephemeral' }` on the LAST static tool via the `extras` field LangChain's Anthropic adapter forwards (`AnthropicToolExtrasSchema`). This way, the cached prefix covers exactly the static tool inventory. Discovered deferred tools that arrive across turns sit *after* the breakpoint and don't invalidate the prefix. The wrap is non-mutating (clones with `Object.create(getProto…)` so the original tool reference is untouched) and idempotent. 10 unit tests in `src/messages/__tests__/anthropicToolCache.test.ts` cover partition order, stamp behaviour, prototype preservation, extras merging, and idempotency. Wired in `Graph.ts` right after `resolveLocalToolsForBinding`, gated on Anthropic + `promptCache: true`. In practice the impact is smaller than I expected because `addCacheControl` on the last user message ALREADY creates a cache breakpoint that covers the tools+system prefix as part of the cumulative cached prefix. The tool-level breakpoint becomes load- bearing in cases where: - A turn arrives without a fresh user message (resume after tool call only), - The user message would otherwise blow the cache breakpoint, or - Cache budget needs to be split across multiple breakpoints to fit inside Anthropic's 4-breakpoint cap. Still correct; still worth shipping; just not a 6× win on its own. 2. Harness accounting fix (the actual ~6× swing) ------------------------------------------------ `compare:pi`'s previous run reported ours' input tokens as ~28k–48k per turn vs pi's ~35–80, suggesting a 6× cost gap that survived caching. That number was wrong. LangChain's Anthropic adapter at src/llm/anthropic/utils/message_outputs.ts:31 reports `usage_metadata.input_tokens` as the SUM of uncached input + cache_creation + cache_read — i.e., the total prompt size, NOT the uncached portion. Pi reports `usage.input` as uncached only. So our "input new" column was double-counting cached tokens. The harness now subtracts `cache_read + cache_creation` from `input_tokens` when computing our "input new", so the column is apples-to-apples with pi's `input` field. Recomputed live results (N=2, caching on, real Anthropic): task pi cost ours cost delta T1 simple-edit $0.0158 $0.0171 +8% T2 fuzzy-edit $0.0157 $0.0173 +10% T3 syntax-fix $0.0210 $0.0248 +18% T4 type-error-loop $0.0325 $0.0292 -10% ← we win T5 multi-file $0.0264 $0.0312 +18% T6 image (ours-only) — $0.0158 Functional: pi 10/10 ✔, ours 12/12 ✔. Wall time: ours wins T3/T4/T5 (most-complex tasks), pi wins T1/T2. Tool calls: ours wins or ties every shared task. Output tokens: ours wins every shared task. Cost: pi ~10–20% cheaper on simpler tasks, ours wins the most complex one (T4). We're effectively at parity. The "we're 6× more expensive" claim posted earlier was the harness error. * feat(local-engine): workspace + exec seams + HITL on direct path Three changes that fit together — first two answer the "what about a second engine" + "what's the workspace" questions; the third was the last gap blocking workspace-policy `'ask'` from working end-to-end. 1. WorkspaceFS exec seam (engine reusability) --------------------------------------------- New `WorkspaceFS` interface in src/tools/local/workspaceFS.ts (read, write, stat, readdir, mkdir, realpath, unlink, open) with a `nodeWorkspaceFS` default. Every file-touching factory in the local coding suite (read_file, write_file, edit_file, grep_search, glob_search, list_directory, file checkpointer, binary detection helper) now routes through this interface. A future engine — stateful remote sandbox, in-memory test FS, ssh jail — supplies its own `WorkspaceFS` and inherits every tool's behavior (fuzzy-match edit, BOM/EOL preservation, syntax check, checkpointer, attachment classifier) for free. Same story for process spawning: the existing `local.spawn` is now nested under `local.exec.spawn` with the legacy top-level field still honoured. The seams are wired through three new resolvers: - `getWorkspaceRoots` — canonical root + additionalRoots - `getReadRoots`/`getWriteRoots` — split allow-outside knobs - `getWorkspaceFS` — `local.exec.fs` ?? nodeWorkspaceFS - `getSpawn` — `local.exec.spawn` ?? local.spawn ?? Node Plus 7 unit tests in src/tools/__tests__/workspaceSeam.test.ts that verify additionalRoots, the new allowReadOutside/allowWriteOutside split, legacy `cwd` + `allowOutsideWorkspace` back-compat, and that a custom WorkspaceFS actually receives the file tool calls. 2. First-class workspace boundary + policy hook ----------------------------------------------- Nested `local.workspace` config: workspace: { root: string, additionalRoots?: readonly string[], // monorepo: extend boundary allowReadOutside?: boolean, // split from write allowWriteOutside?: boolean, } Back-compat: top-level `cwd` and `allowOutsideWorkspace` still work and map to `workspace.root` / both `allowOutside*` flags. `resolveWorkspacePathSafe(path, config, intent)` now takes a `'read'` | `'write'` intent so reads and writes can have different allow- outside semantics. Default callers pass `'write'` for stricter clamping; read tools (read_file, grep_search, glob_search, list_directory) explicitly pass `'read'`. New `createWorkspacePolicyHook` in src/hooks/createWorkspacePolicyHook.ts returns a `PreToolUse` callback that: - inspects each tool call's input via per-tool path extractors (defaults cover the local-engine coding suite; hosts can override / extend), - returns `allow` for in-workspace paths (incl. additionalRoots), - returns `'ask'` (default) / `'allow'` / `'deny'` for outside paths, with separate read/write policies. This is exactly the user-visible "ask once / always" semantic claude-code and opencode have, but built on the existing PreToolUse + HITL machinery instead of a parallel permissions API. 14 unit tests in src/hooks/__tests__/createWorkspacePolicyHook.test.ts. 3. HITL interrupt() on the direct path (the missing piece) ---------------------------------------------------------- The previous direct-path hook commit fail-closed `'ask'` decisions because the interrupt machinery only existed in the event-dispatch path. The workspace policy hook above wants to use `'ask'` for real, so this commit lifts the gap. `runDirectToolWithLifecycleHooks` now: - When `humanInTheLoop.enabled === true` and PreToolUse returns `'ask'`: builds a single-tool `tool_approval` payload and raises a real LangGraph `interrupt()` (anchored to the node's RunnableConfig the same way `dispatchToolEvents` does — ToolNode disables LangSmith tracing so the AsyncLocalStorage frame must be re-established). - On resume: - `approve` runs the tool with the (possibly hook-rewritten) args - `reject` blocks via the new `blockDirectCall` helper - `respond` returns the host-supplied `responseText` as a synthetic success ToolMessage (no tool execution) - `edit` re-runs the tool with the host-edited args - When HITL is off: collapses to a fail-closed deny (matches the rest of the SDK's HITL-disabled default). One-time warning logged so hosts notice the gap. - `allowedDecisions` enforcement matches the event path — a decision type outside the policy's allowlist is fail-closed. `blockDirectCall` is the shared helper that synthesises the Blocked ToolMessage and fires `PermissionDenied`, used by every deny path (deny decision, fail-closed ask, reject, allowedDecisions violation, malformed respond). Updated the existing fail-closed-on-ask test in directToolHooks.test.ts to assert the new HITL-disabled behaviour explicitly. Live verification ----------------- New `npm run local:workspace` script: - workspace.root = temp dir - additionalRoots = sibling temp dir - createWorkspacePolicyHook with outsideRead/outsideWrite='ask' - humanInTheLoop.enabled = true - asks the model to read 3 files: in-workspace, sibling, outside Live result against real Anthropic Sonnet: ✔ inside.txt → workspace policy 'allow' → read INSIDE ✔ sibling.txt → 'allow' (additionalRoots) → read SIBLING ✔ outside.txt → 'ask' → INTERRUPT raised with action_request carrying the path → script auto-approves → tool runs → read SECRET Final: HITL interrupts handled = 1, successful tool messages = 3 The model didn't even need its "retry if blocked" instruction — HITL handled the approval transparently. Functional + non-API tests: 1245 passing (was 1224; +21 new across workspace seam + workspace policy hook + the updated direct-tool ask test). * feat(common): canonical tool-name constants for local coding tools LibreChat's `getToolIconType` (client/src/components/Chat/Messages/ Content/ToolOutput/ToolIcon.tsx) special-renders four of our tools by exact name match: `bash_tool`, `read_file`, `execute_code`, `run_tools_with_code`. We already use those names, so they pick up the right icon end-to-end. The newer local-engine tools (`write_file`, `edit_file`, `grep_search`, `glob_search`, `list_directory`, `compile_check`) were defined as per-file `Local*ToolName` consts — string literals that would silently drift if anyone renamed them in only one place, and that no consumer UI could discover programmatically. Promotes them to `Constants.*` (single source of truth) and adds two grouped lists alongside the workspace types so consumers can match against canonical strings: - `Constants.WRITE_FILE` ('write_file') - `Constants.EDIT_FILE` ('edit_file') - `Constants.GREP_SEARCH` ('grep_search') - `Constants.GLOB_SEARCH` ('glob_search') - `Constants.LIST_DIRECTORY` ('list_directory') - `Constants.COMPILE_CHECK` ('compile_check') - `LOCAL_CODING_TOOL_NAMES` — the 7 local-only tools (the 6 above plus READ_FILE) - `LOCAL_CODING_BUNDLE_NAMES` — the local-only set + the bash/code/ PTC pair the bundle wraps around the existing factories The per-file `Local*ToolName` and `CompileCheckToolName` exports are retained as back-compat aliases pointing at the canonical Constants so existing consumers keep working. Wired through: - `createWorkspacePolicyHook` default path extractors now key off `Constants.*` (was string literals). - `LocalCodingTools.ts` Local*ToolName aliases collapsed into `Constants.*` references. - `CompileCheckTool.ts` likewise. 5 new unit tests in localToolNames.test.ts pin: - per-file aliases match Constants - canonical strings match the wire-level expectations LibreChat (and other consumer UIs) special-case - LOCAL_CODING_BUNDLE_NAMES matches what `createLocalCodingTools` actually emits - LOCAL_CODING_TOOL_NAMES matches what `createLocalCodingToolDefinitions` emits - bundle list is a strict superset of the local-only list Net effect: when LibreChat (or any other consumer UI) eventually adds icons for write_file / edit_file / grep_search / glob_search / list_directory / compile_check, the wiring picks up automatically without an SDK change. And renames from one side without the other get caught at test time. Tests: 1250 passing (was 1245; +5 new). * fix(local): three Codex P2 review nits — bash args, rg cache, root-relative extras Three real issues Codex flagged on the PR. Each is small but behavior-affecting; tests pin each. #1 — `executeLocalCode` dropped `args` when lang was bash -------------------------------------------------------- For every other runtime (py, js, ts, php, go, rs, c, cpp, java, r, d, f90), `getRuntimeCommand` appends `input.args` as positional parameters. The `lang === 'bash'` short-circuit was calling `executeLocalBash(input.code, config)` and silently discarding `args`, so `{lang:'bash', code:'echo $1', args:['hi']}` printed an empty string instead of `hi`. Fix: when lang is bash AND args is non-empty, route through a new `executeLocalBashWithArgs` helper that uses the standard `bash -lc <code> -- <args...>` form so `$1`, `$2`, … resolve. Same AST validation as the no-args path. The plain `executeLocalBash` (used by the `bash_tool` factory itself) is unchanged. Test: `codex review fixes › executeLocalCode bash args › passes input.args as positional shell parameters when lang is bash`. #2 — ripgrep availability cache was process-global -------------------------------------------------- With per-Run `local.exec.spawn` backends (the seam added for the future remote-engine), a single `let cachedRgAvailable` would let Run A's "rg works" verdict poison Run B whose backend (e.g. a remote sandbox without rg) doesn't have it. Run B would skip the probe, try to spawn rg, throw, and never reach the Node fallback. Fix: cache is now a `WeakMap<LocalSpawn, Promise<boolean>>` keyed on the effective backend (whatever `getSpawn(config)` returns). WeakMap lets disposed backends GC their entry; the test reset hook re-creates the map. Test: `codex review fixes › ripgrep cache backend scope › does not bleed an "rg available" verdict from one backend to another`. #3 — `additionalRoots` resolved against process.cwd, not workspace root ---------------------------------------------------------------------- With `workspace: { root: '/repo/app', additionalRoots: ['../shared'] }`, the intended boundary is `/repo/shared`. The previous `path.resolve(extra)` anchored to the process cwd, producing `${process.cwd()}/../shared` — completely different on a server with a different cwd, and could deny the legitimate sibling or allow an unrelated directory. Fix: `getWorkspaceRoots` and `createWorkspacePolicyHook` now both do `isAbsolute(extra) ? resolve(extra) : resolve(root, extra)`. Behaviour matches what users would expect from a "monorepo sibling" config. Test: `codex review fixes › additionalRoots resolved against workspace root › treats relative additionalRoots as siblings of root, not of process.cwd`. Tests: 1254 passing (was 1250; +4 new). Lint + tsc clean. * docs(hitl): unstale the "event-driven only" caveats; pin resume scope Three JSDoc blocks were honest at PR #134 ship time but went stale once `6122460` (hooks fire on the legacy non-event-driven path) and `caed7a2` (HITL interrupt() lifted into the direct path) landed: - `HumanInTheLoopConfig` — "Scope: event-driven tools only" header plus the bullet declaring direct-path tools "bypass the hook system entirely. PreToolUse hooks do not fire for those tools and HITL approval does not gate them." Both halves are now false. - `ToolNodeOptions.hookRegistry` — "Only fires for event-driven tool calls; tools routed through directToolNames bypass hook dispatch entirely." Now false. - `ToolNodeOptions.humanInTheLoop` — "the interrupt path is only wired into the event-driven dispatch (dispatchToolEvents), not into directToolNames execution — direct tools bypass HITL entirely." Now false. Also re-evaluated the "mixed direct + event batches re-execute the direct half on resume" caveat. New tests in `directToolHITLResumeScope.test.ts` pin the actual scope: - When a single tool interrupts via the direct path, its body runs **once** total. The first pass interrupted before reaching runTool; the resume pass ran the body after the host's decision was applied. The PreToolUse hook fires twice (the documented idempotency caveat). - When a sibling tool already ran in the same batch before the interrupting tool, the sibling's body runs **twice** — once on each pass. This applies symmetrically to event-dispatched and direct siblings; LangGraph rolls back the entire ToolNode invocation, not just the direct half. Updated wording reflects both: HITL spans both paths uniformly, and the side-effect warning applies to "any tool with side effects in a batch where another tool interrupts" rather than singling out direct tools. Hosts that want a tool to skip HITL must omit it from any registered matcher rather than relying on the path it takes. Tests: 1256 passing (was 1254; +2 new for resume-scope pinning). * fix(local): two more Codex review nits — output OOM cap + bash_tool args #4 P1 — `spawnLocalProcess` could OOM the host on noisy commands ---------------------------------------------------------------- Previous implementation accumulated every stdout/stderr chunk into in-memory strings and only truncated post-`close`. A noisy command (`yes`, `cat /dev/urandom | base64`, a verbose build) could stream gigabytes before the cap kicked in — production-stability risk since local tools execute arbitrary shell. Fix: stream-time cap with three layers, all in `spawnLocalProcess`: 1. Per-stream in-memory buffer capped at `maxOutputChars * 2`. Past that, chunks divert to a lazy temp file (the spill). 2. The spill file is seeded with whatever was already buffered so it holds the FULL output (head from memory + tail from stream), not just the post-cap remainder. 3. New `local.maxSpawnedBytes` config (default 50 MiB) hard-kills the process tree once total stdout+stderr crosses the cap. Independent from `maxOutputChars` (which only affects what the model sees) — this is the OOM backstop. `finish()` now waits for the spill stream to flush before resolving, so the model never sees `full_output_path: …` for a still-being- written file. Tests pinned: `codex review fixes (round 2) › streaming output cap`: - `yes` gets killed in ~200ms when capped at 64 KiB (vs the 30s timeout that would otherwise apply) - 200 KiB output with an 8 KB inline cap successfully spills; the file holds more than the in-memory truncation - small outputs do NOT create a spill file (no perf regression) #5 P2 — `bash_tool` factory broke positional shell parameters ------------------------------------------------------------- Same shape as the previous `executeLocalCode` bash-args fix (`9b5fb85`), but in the `bash_tool` factory itself. It was appending args literally to the command string: `${command} ${args.map(shellQuote).join(' ')}` So `command: 'echo "$1"'` with `args: ['hi']` ran `echo "$1" hi` — `$1` was empty, `hi` got appended literally. Tool schema advertised args as execution arguments; the actual behavior didn't match. Fix: route through the `executeLocalBashWithArgs` helper (now exported from LocalExecutionEngine) which uses `bash -lc <command> -- <args...>` so `$1`, `$2`, … resolve correctly. Falls back to the no-args `executeLocalBash` when args is empty (no behavior change for that case). Test: `bash_tool args › populates positional shell parameters from input.args` (and a second case for missing args). Tests: 1261 passing (was 1256; +5 new). * fix(local): three more Codex nits — config.shell, probe cache scope, grep -e #6 P1 — validateBashCommand hard-coded DEFAULT_SHELL ---------------------------------------------------- The `bash -n -c <command>` syntax preflight was hard-coded to DEFAULT_SHELL ('bash' on POSIX, 'bash.exe' on Windows), so a Run configured with `local.shell: '/bin/sh'` (or pointing at zsh, dash, or any host where bash isn't available) would get its commands syntax-validated against a different binary than the one that would actually execute them. Valid commands could be rejected before execution; commands relying on bashisms could be falsely accepted on hosts without bash. Fix: route the syntax preflight through `config.shell ?? DEFAULT_SHELL` so validation uses the same binary the actual execution path uses. Test: `codex review fixes (round 3) › validateBashCommand honours configured shell › routes the -n preflight through local.shell when set`. Intercepts the spawn calls and asserts the syntax check used `/bin/sh`, not the DEFAULT_SHELL fallback. #7 P2 — syntax-check probe cache was process-global --------------------------------------------------- Same shape as the ripgrep-cache fix in `9b5fb85`: per-Run `local.exec.spawn` backends mean a "node available" / "python available" / "bash available" verdict from one backend's probe could poison subsequent Runs whose backend (e.g. a remote sandbox that has python but not node) doesn't have those tools. Fix: cache is now `WeakMap<LocalSpawn, ProbeCache>` keyed on the effective spawn backend (whatever `getSpawn(config)` returns). Disposed backends GC their entry; the test reset hook re-creates the map. Mirrors the ripgrep cache exactly. Test: `codex review fixes (round 3) › syntax-check probe cache is backend-keyed › does not bleed an "rg/node/python available" verdict from one backend to another`. #8 P2 — grep pattern parsed as flag when dash-prefixed ------------------------------------------------------ The `grep_search` tool sent `input.pattern` as a positional arg to `rg`. A pattern like `-foo` got parsed as an unknown flag and rg bailed out instead of searching for it. `rg --help` explicitly requires `-e/--regexp` (or `--`) for dash-prefixed patterns. Fix: pass the pattern via `-e <pattern>`. Same trick also defends against any future flag-conflict if a user query happens to look like an rg long option. The Node fallback path doesn't need this — JS RegExp accepts dash-prefixed patterns natively. Test: `codex review fixes (round 3) › grep passes pattern via -e › handles dash-prefixed patterns without rg interpreting them as flags`. Tests: 1264 passing (was 1261; +3 new). * fix(local): two more P1 Codex nits — quoted destructive + symlink-escape #9 P1 — dangerous-command gate missed quoted targets ---------------------------------------------------- `validateBashCommand` checks `dangerousCommandPatterns` against `normalized` — the post-`stripQuotedContent` form. That pass blanks the contents of every quoted span, so destructive targets that the LLM (accidentally or not) wraps in quotes — `rm -rf "/"`, `rm -rf "$HOME"`, `chmod -R 777 "/"` — slip past the regex even though they execute identically to the bare form. Real safety regression on the default-on guard. Fix: split the destructive check into two passes. 1. The existing `dangerousCommandPatterns` continue to run against `normalized`. Same false-positive defence (`echo "rm -rf /"` stays valid because the destructive text is wrapped by the OUTER quote pair, not by quotes around the path argument). 2. New `quotedDestructivePatterns` run against the ORIGINAL command string. Each pattern explicitly REQUIRES a matching quote pair around the destructive path (`"/"`, `"$HOME"`, `'/'`, etc.). `echo "rm -rf /"` doesn't match — the `/` isn't surrounded by quotes there, only the whole `rm -rf /` string is. Tests: `codex review fixes (round 4) › quoted destructive targets` covers `"/"`, `"$HOME"`, `'/'`, `chmod -R 777 "/"`, no-regression on bare forms, and the `echo "rm -rf /"` no-false-positive case. #10 P1 — workspace policy hook compared lexical paths only ---------------------------------------------------------- `createWorkspacePolicyHook` did `isAbsolute(p) ? resolve(p) : resolve(root, p)` and called it done. A symlink inside the workspace pointing outside (e.g. `workspace/escape → /etc/secret`) lexically appears under `workspace/` and got auto-allowed — even though the agent reading through it touches a path the policy meant to gate. Critical when the hook is the primary gate: the documented "ask the user" setup turns `allowReadOutside: true` so the file tools' own clamp is off, leaving the hook as the sole defence. Fix: the hook now realpaths both the candidate and the workspace roots before comparing. Roots are pre-realpath'd once at construction (memoized via a Promise so the per-call cost is one realpath) and candidate paths get the same `realpathOfPathOrAncestor` walk `resolveWorkspacePathSafe` already uses — so paths that don't yet exist (e.g. `write_file` to a brand-new path) still get checked against their nearest existing ancestor's realpath. Two test cases pin both halves: - `workspace/escape → extra/secret.txt` — hook DENIES read of `escape` even though it's lexically inside. - `extra/alt-mount → workspace/` — hook ALLOWS read of `extra/alt-mount/file.ts` because the realpath lands inside the workspace root (covers the alternate-mount case so we don't over-correct). Tests: 1272 passing (was 1264; +8 across both fixes). * fix(local): treat maxSpawnedBytes=0 as unlimited (Codex P2 #11) The public LocalExecutionConfig contract documents `maxSpawnedBytes: 0` as "no cap", but the kill check `totalSpawnedBytes > hardKillBytes` triggered on the very first byte when the cap was zero. Skip the kill path entirely when `hardKillBytes <= 0` so configs that explicitly opt out of the OOM backstop behave as documented. * chore(scripts): forward ON_RUN_STEP in pi-vs-ours harness Without an ON_RUN_STEP handler the aggregator's stepMap is empty when ON_RUN_STEP_COMPLETED arrives, so every tool call logged "No run step or runId found for completed step event" to stderr. Mirror the pattern used in src/scripts/code_exec.ts (and friends): register both events. Harness-only — no SDK behavior change. * fix(local): ESM-safe spill + surface rg failures in glob_search (Codex P1 #12, P2 #13) Two issues from the latest review pass: 1) `spawnLocalProcess`'s spill path used `require('fs')` inside an ESM-shipped module. Fine in CJS test runs, throws `ReferenceError: require is not defined` for any ESM consumer that triggers the overflow path. Switch to a static `import { createWriteStream } from 'fs'` so both build outputs work. 2) `createLocalGlobSearchTool` ignored ripgrep's exit code and stderr, so `rg --files <missing-target>` (exit 2) silently mapped to "No files found." — the agent then treated a tooling failure as a real absence of matches. Now we check `result.exitCode > 1` (and `timedOut`) and return an explicit `glob_search failed: <stderr>` string + an artifact carrying the error. Tests pinned: `codex review fixes (round 5) › spill path is ESM-safe` and `… › glob_search surfaces ripgrep failures`. The glob test uses an injected spawn backend so it runs deterministically on hosts without ripgrep installed. * fix(local): sandbox loopback bridge + additionalRoots writes (Codex P1 #14, P2 #15) Two issues with how `buildSandboxRuntimeConfig` lays out the SandboxRuntimeConfig: 1) The local programmatic-tool bridge listens on 127.0.0.1, but the sandbox default `allowedDomains: []` denies all outbound network — so `run_tools_with_code` / `run_tools_with_bash` fail under sandbox even though they work unsandboxed. Seed allowedDomains with `127.0.0.1`, `localhost`, `::1` (skip any host the user explicitly listed in `deniedDomains`, and dedupe against user-supplied `allowedDomains`). 2) The sandbox `allowWrite` allowlist was seeded with `cwd` only, so `workspace.additionalRoots` paths were resolvable by file tools but blocked for sandboxed shell/code. Now seed from `getWorkspaceRoots` so both surfaces share the same boundary. Exported `buildSandboxRuntimeConfig` so the round-6 tests can drive it directly without standing up the real native sandbox runtime. Test count: 1283 passing (was 1276). Lint baseline unchanged. * fix(direct-path): HITL edit reads updatedInput; PostToolUse updates registry (Codex P1 #16, P2 #17) Two bugs in `runDirectToolWithLifecycleHooks`: 1) The `edit` decision branch read `decision.args`, but the documented `ToolApprovalDecision` shape uses `updatedInput`. Hosts following the public type signature were silently ignored — the tool ran with the original (un-edited) arguments. Now mirrors the event-driven path's validation: read `updatedInput`, fail closed on missing/wrong-shaped payloads (returns an error ToolMessage instead of executing with undefined args). 2) When a `PostToolUse` hook returns `updatedOutput`, the direct path returned a new ToolMessage with the replacement content but never updated the `toolOutputReferences` registry. Subsequent `{{tool<i>turn<n>}}` substitutions then delivered the stale pre-hook bytes while the model observed the post-hook replacement. Now reads `_refKey`/`_refScope` from the message metadata (already stamped by `recordOutputReference`) and calls `toolOutputRegistry.set` with the replacement. Tests: `direct-path HITL: resume scope > edit decision (Codex P1 #16)` covers both the happy path (edited args reach the body) and the fail-closed branch. `ToolNode tool output references > PostToolUse updatedOutput updates the registry (Codex P2 #17)` chains two calls where the second references the first via {{tool0turn0}} and asserts the substituted value matches the post-hook content. * fix: snapshot direct-batch args + curl-first bash bridge (Codex P1 #18, P2 #19) P1 #18 (ToolNode.ts): direct-path tools resolved {{tool…turn…}} placeholders against the LIVE registry inside `runTool`, which runs AFTER awaiting PreToolUse hooks. In a `Promise.all`-driven batch a slow hook on call A could let call B finish first and register its output, then A's late re-resolve would substitute B's output into A's args — order-dependent leakage that violates same-turn isolation. Snapshot the registry once per batch in `run()` (mirrors the event-driven path), thread it through `RunToolBatchContext`, and have both `runDirectToolWithLifecycleHooks` and `runTool` resolve against the snapshot when present. P2 #19 (LocalProgrammaticToolCalling.ts): the bash bridge required `python3` on PATH, breaking `run_tools_with_bash` on minimal containers and Windows hosts without python3 installed. Bridge now serves a `?mode=text` variant that returns the already-serialized result body so bash callers can use `curl` (universally available) without pulling in a JSON parser. Bash helper tries curl first, falls back to python3 for environments without curl, errors helpfully if neither is available. Tests pinned: `ToolNode tool output references › direct-batch snapshot isolation (Codex P1 #18)` (slow PreToolUse hook + sibling finishes-first scenario), and `ProgrammaticToolCalling › bash bridge script does not require python3 (Codex P2 #19)` (asserts both helper branches present in the generated script with curl preferred). * fix(local): block `--` end-of-options + gate compile_check overrides (Codex P1 #20, P1 #21) P1 #20: the destructive-command guard required the target path to follow option flags directly, so `rm -rf -- "/"` (and similarly `chmod -R 777 -- "/"`) bypassed the check via the GNU/BSD end-of-options marker. Both `dangerousCommandPatterns` and `quotedDestructivePatterns` now allow an optional `(?:--\\s+)?` between the flags and the destructive target. P1 #21: `compile_check` ran the resolved command through `bash -lc` without going through `validateBashCommand`, so a host-supplied `command` override (or `compileCheck.command` config entry) could execute mutating/destructive commands even with `readOnly: true` or the dangerous-command guard normally in force. Now routes through `validateBashCommand(detection.command, config)` first; on failure returns an explanatory ToolMessage with `ran: false` rather than spawning the process. Tests pinned: `codex review fixes (round 6) › destructive guard handles `--` end-of-options` (5 cases including a benign-`--` no-regression check) and `… › compile_check enforces validateBashCommand + readOnly` (rm -rf, touch under readOnly, benign echo). Lint baseline unchanged. * chore: audit-pass cleanups + missing test coverage (manual review #1, #3, #5, #7, #9, #10, #11) Comprehensive-review audit findings, fixed in one pass: #1 (attachments full-file MIME sniff): switch classifyAttachment to open() + 12-byte header read for sniffing; only readFile() the full buffer when we're about to embed. A 9 MB image now allocates 12 bytes for sniffing instead of 9 MB. #3 (fallback walker SKIP_DIRS too small): expanded the Node-fallback walker's skip set to cover dist/build/.next/.cache/__pycache__/ .venv/venv/target/vendor/coverage/.tox/.mypy_cache and friends. ripgrep itself respects .gitignore so this only affects the fallback. #5 (dynamic fs/promises import): replaced two `await import('fs/ promises').then(...)` calls in CompileCheckTool with a static `import { readFile, stat } from 'fs/promises'` per AGENTS.md. #7 (test-only resets in public API): added @internal JSDoc to all three `_reset*ForTests` functions so IDE autocomplete signals they aren't part of the SDK surface. (The leading underscore was convention-only; @internal is the standard tag.) #9 (legacy fields missing @deprecated): added @deprecated tags to `LocalExecutionConfig.cwd` and `allowOutsideWorkspace` pointing to their workspace.* replacements. #10 (dead lexicallyInside compute in workspace policy hook): dropped the unused variable. Realpath is the source of truth for both the symlink-escape and alternate-mount cases; the lexical check provides no information so we don't pay for it. #11 (voided unused imports in pi comparison script): removed the `void readdir; void cp;` workaround and the dead imports they were silencing. Bonus: also addressed the comprehensive review's #2 (bitwise OR) by verifying it was a misread — the code uses `||`, not `|`. Manual review's reading was wrong; no fix needed. Larger findings addressed: #4 (no editStrategies tests): added `src/tools/local/__tests__/editStrategies.test.ts` with 12 cases covering exact / line-trimmed / whitespace-normalized / indentation-flexible match boundaries, start/end-of-file matches, unicode content, multi-line needles spanning blank lines, ambiguous-match rejection, and applyEdit semantics. #12 (no FileCheckpointer tests): added `src/tools/local/__tests__/FileCheckpointer.test.ts` with 6 cases covering capture+rewind happy path, idempotent capture, absent-file rewind (deletion), multi-file rewind, oversize-file tracking-but-not-snapshotting, and rewind across a deleted parent directory. Performance: #8 (lineWindow split-whole-file): replaced `content.split('\\n')` in `lineWindow` with a newline-walk that's O(start + limit) instead of O(file). For a 10 MB file with `offset: 1, limit: 10` this drops from "split the whole file into millions of strings" to ~10 indexOf calls. Falls back to the simple split when no limit is supplied. Deferred: #6 (spill files never cleaned) needs a Run-lifecycle hook to run cleanup; tracked separately rather than fixed inline. * fix: comprehensive review (round 7) — bridge hooks, sandbox latch, nested-shell, regex DoS, attachments via WorkspaceFS, expose checkpointer Codex P2 (sandbox warning latch): syntax preflight, ripgrep-availability, and node/python/bash probes used to spawn through the public path that fires `maybeWarnSandboxOff`, both emitting a misleading "sandbox is off" warning when the run had `sandbox.enabled: true` AND latching `sandboxOffWarned = true` so a later genuinely-unsandboxed execution silently skipped its warning. Added an opt-in `{ internal: true }` options arg to spawnLocalProcess that suppresses both. Threaded it through every internal probe. Manual #A (P1): the in-process programmatic-tool bridge invoked inner tools via `executeTools` directly, bypassing every PreToolUse hook the host registered. ToolNode now plumbs a `hookContext` (registry + runId/threadId/agentId) into the programmatic-tool factory; the bridge runs PreToolUse before each inner tool.invoke. `deny` and `ask` (HITL not reachable from inside an HTTP handler) fail closed; `updatedInput` is applied to the inner tool args. 4 tests pinned. Manual #B (P1): already fixed in c6e2632 (round 9 — compile_check routes through validateBashCommand). Reviewer was at 75a54b3, predates that commit. Manual #C (P1): `bash -lc "rm -rf $HOME"` (and friends) bypassed the destructive-command guard because `stripQuotedContent` blanks the nested payload before the patterns run. Added a third pattern list `nestedShellDestructivePatterns` that runs against the original command and matches destructive ops (`rm -rf`, `chmod -R 777`, `chown -R`) inside `<shell> -[l]?c "..."` and `eval "..."` payloads. 4 tests including a benign-nested-echo no-regression check. Manual #D (P2): `fallbackGrep` compiled the model-supplied pattern via `new RegExp` and ran it across every file, opening the door to catastrophic-backtracking DoS (`(a+)+$`-style patterns). Added a guardrail layer: 1024-char pattern length cap, nested-quantifier heuristic rejection, 5-second wall-clock budget for the overall search. Surfaced as a structured `FallbackGrepError` -> tool result with engine: 'node-fallback' + the kind tag. Hosts that need bulletproof regex safety should install ripgrep (RE2-based, no backtracking). 2 tests pinned. Manual #E (P2): `local.fileCheckpointing: true` in RunConfig was a silent no-op in the auto-bind path — `createLocalCodingTools()` made a checkpointer that was immediately discarded. Now the auto-bind path uses `createLocalCodingToolBundle()` when checkpointing is on, returns the checkpointer through `ResolveLocalToolsResult`, and ToolNode stashes it + exposes via `getFileCheckpointer()`. 2 tests pinned. Manual #F (P3): `classifyAttachment` used host `fs/promises` directly instead of the configured `WorkspaceFS`. A custom/remote engine could fail to embed valid attachments OR accidentally read a host path with the same absolute name. Added optional `fs` arg to classifyAttachment threaded from `read_file` through to its `WorkspaceFS`. Backward compatible — defaults to host fs/promises when no fs is supplied. Tests touched: 768 passing across all suites (was 750ish). Lint baseline unchanged. * chore: address audit-of-audit findings (4/4 valid) Follow-up audit on commit ebf8b6a flagged 4 nits/minors. All valid: F1 (NIT): the lineWindow perf fix introduced exactly the same `void <var>` pattern that finding #10 had me remove from createWorkspacePolicyHook. Embarrassing — dropped the dead `line` variable + `line++` + `void line`. F2 (MINOR): the editStrategies test commit message claimed coverage of "ambiguous-match rejection" but no test actually exercised the multi-match → null path. Added the missing case for the exact strategy. Noted in a comment that the looser strategies in the chain may still resolve duplicates unambiguously by falling through; whether that's correct is a separate design call. F3 (NIT): the new FileCheckpointer.test.ts had a `import('fs/ promises')` inside a catch block when `mkdir` was already available via the static import at the top. Static-imported `mkdir` and restructured the test to mkdir-then-writeFile unconditionally (the catch-and-retry pattern was unnecessary defensive plumbing). F4 (NIT): the unused-imports cleanup missed `sum`/`void sum` in the comparison harness. Removed the function and its void. * fix: expose file checkpointer through Run/Graph (audit follow-up) Round-7 finding E only fixed half the problem: ToolNode got `getFileCheckpointer()` so direct `new ToolNode(...)` users could reach it, but the normal `Run.create(...)` path constructed ToolNodes inline inside `StandardGraph.initializeTools` and dropped the reference. So `RunConfig.toolExecution.local.fileCheckpointing: true` was still a no-op for Run callers — and the public JSDoc on `fileCheckpointing` referenced a `Run.rewindFiles()` that didn't exist. Now: - Graph adds `getOrCreateFileCheckpointer()` — lazily constructs ONE per-Run checkpointer when local fileCheckpointing is on. Cleared in `clearHeavyState()` along with the other per-Run state. - `StandardGraph.initializeTools` threads it into BOTH ToolNode constructions (the agentContext branch and the traditional-tools branch). Multi-agent graphs end up sharing a single snapshot store, so `rewind()` reaches writes from any agent. - ToolNode accepts `fileCheckpointer?` in its constructor and passes it to `resolveLocalExecutionTools`, which forwards into `createLocalCodingToolBundle({ checkpointer })`. Caller-provided wins over the auto-created one. - Run gains `getFileCheckpointer()` and `rewindFiles()` — the documented APIs. `rewindFiles()` returns 0 when checkpointing is disabled (no-op rather than throwing). - `LocalExecutionConfig.fileCheckpointing` JSDoc updated to reference the now-real APIs. Tests pinned: `… › fileCheckpointer reachable through Run.getFileChec…

feat: allow configurable Cohere API URL in CohereReranker

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feat: allow configurable Cohere API URL in CohereReranker#11

feat: allow configurable Cohere API URL in CohereReranker#11
davidjrh wants to merge 1 commit intodanny-avila:mainfrom
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