Dashboard › opencode › Distillation
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/home/byk/.local/share/opencode-v2-pilot/opencode-v2.service is a 32-line systemd unit for OpenCode V2 Server: Type=simple; runs as User=byk from /home/byk; loads /home/byk/.opencode/env and /home/byk/.local/share/opencode-v2-pilot/server.env; sets OPENCODE_CONFIG_DIR=/home/byk/.local/share/opencode-v2-pilot/config/opencode, OPENCODE_DB=/home/byk/.local/share/opencode-v2-pilot/data/opencode/opencode.db, XDG_DATA_HOME=/home/byk/.local/share/opencode-v2-pilot/data, XDG_CACHE_HOME=/home/byk/.local/share/opencode-v2-pilot/cache, XDG_CONFIG_HOME=/home/byk/.local/share/opencode-v2-pilot/config, and XDG_STATE_HOME=/home/byk/.local/share/opencode-v2-pilot/state.opencode-v2.service starts /home/byk/Code/opencode-v2-pilot/packages/cli/dist-v2-pilot-byk/cli-node-linux-x64/bin/opencode2-node serve --hostname=0.0.0.0 --port=4096; uses Restart=always, RestartSec=5, Nice=-5, LimitNOFILE=65535, LimitNPROC=4096, MemoryMax=13G, MemoryHigh=12G, NoNewPrivileges=true, ProtectSystem=strict, ProtectHome=read-only, ReadWritePaths=/home/byk, and PrivateTmp=yes; it is wanted by multi-user.target./home/byk/.local/share/opencode-v2-pilot/CUTOVER.md states the V2 executable serves the API and web UI from one origin and nginx must not be added.CUTOVER.md preflight order is: 1. confirm production health on port 4096; 2. confirm candidate revision with git -C /home/byk/Code/opencode-v2-pilot rev-parse HEAD and smoke build via /home/byk/Code/opencode-v2-pilot/packages/cli/dist-v2-pilot-byk/cli-node-linux-x64/bin/opencode2-node --version; 3. confirm the isolated candidate on port 14104 with authenticated curl --fail checks against /api/health and /; 4. call POST /api/plugin/await-activation and confirm both local plugins are active; 5. create /home/byk/.local/share/opencode-v2-pilot/server.env with mode 0600 and OPENCODE_PASSWORD=<password>; 6. run the PTY smoke harness at least 10 times and verify all five tools, canonical permissions/source identity, Session ownership, interaction, JSON notifications, timeouts, TERM-to-KILL escalation, deletion and in-flight deletion, atomic reservations, byte limits, line paging, fixed environment, pinned cwd, and cleanup.CUTOVER.md preflight continues: 7. confirm the PTY runs in-process as byk with byk’s account groups and has no root helper, supervisor service, readiness marker, or root-owned runtime dependency; dormant supervisor/ source is excluded from activation and cutover; 8. confirm explicit kill, timeout, Session deletion, plugin unload, and candidate shutdown stop the PTY process group, while a process deliberately calling setsid() or daemonizing may escape cleanup and is outside the chosen byk trust model; 9. obtain fresh independent correctness and security approval for the exact source revision and candidate binary hash; 10. validate the candidate unit with systemd-analyze verify without starting, stopping, or changing production.CUTOVER.md cutover order is: 1. install the candidate as /etc/systemd/system/opencode-v2.service; 2. run sudo systemctl daemon-reload; 3. run sudo systemctl stop opencode.service; 4. run sudo systemctl start opencode-v2.service; 5. wait for the socket and verify /api/health, /, /site.webmanifest, /sw.js, and /openapi.json on port 4096; 6. call POST /api/plugin/await-activation and confirm followup and local-pty are active via GET /api/plugin; 7. observe real browser traffic and run one follow-up plus one PTY smoke session; 8. enable opencode-v2.service only after every check passes, retaining opencode.service installed and disabled for rollback.CUTOVER.md rollback order is: 1. sudo systemctl stop opencode-v2.service; 2. sudo systemctl start opencode.service; 3. verify the legacy health endpoint and browser UI on port 4096; 4. disable opencode-v2.service only after legacy service health is confirmed./home/byk/.local/share/opencode-v2-pilot/data; rollback never rewrites or deletes either database./home/byk/.local/share/opencode-v2-pilot/config/opencode/opencode.json contains only { "$schema": "https://opencode.ai/config.json" }; service-v2-pilot.json configures hostname: "127.0.0.1" and port: 14104 with a password whose value was redacted./home/byk/Code/opencode-v2-pilot/packages/core/package.json defines @opencode/core version 1.18.4, ESM, MIT license, repository git+https://github.com/anomalyco/opencode.git under packages/core, public publishing, files: ["dist"], wildcard export "./*": "./src/*.ts", and scripts: db="bun drizzle-kit", migration="bun run script/migration.ts", fix-node-pty="bun run script/fix-node-pty.ts", benchmark:location, benchmark:location-memory, build, update-models-snapshot, test, and typecheck="tsgo -b tsconfig.json tsconfig.tests.json".@opencode/core conditional imports map #sqlite, #pty, #persistent-pty-binary, #fff, #photon-wasm, #shell-parser-wasm, and #process-lock-ffi to .workerd.ts, .bun.ts, and .node.ts implementations; their defaults are Node for #sqlite, Bun for #pty, #persistent-pty-binary, #fff, #photon-wasm, #shell-parser-wasm, and #process-lock-ffi. #v1-migration uses ./src/database/v1-migration.bun.ts for types/Bun and ./src/database/v1-migration.noop.ts for Node/workerd/default.@opencode/core PTY-related dependencies include @lydell/node-pty: "catalog:", @opencode-ai/pty: "0.1.13", and bun-pty: "0.4.8"; other exact dependencies shown include @modelcontextprotocol/sdk: "1.29.0", @ff-labs/fff-bun: "0.10.5", @ff-labs/fff-node: "0.10.5", @parcel/watcher: "2.5.1", @silvia-odwyer/photon-node: "0.3.4", fuzzysort: "3.1.0", google-auth-library: "10.5.0", immer: "11.1.4", ignore: "7.0.5", jsonc-parser: "3.3.1", mime-types: "3.0.2", tree-sitter-bash: "0.25.0", tree-sitter-powershell: "0.25.10", venice-ai-sdk-provider: "2.1.1", web-tree-sitter: "0.25.10", and which: "6.0.1"./home/byk/Code/opencode-v2-pilot/packages/plugin/package.json defines @opencode/plugin version 1.18.15, ESM, MIT license; scripts test="bun test --only-failures", typecheck="tsgo --noEmit", and build="tsc -p tsconfig.build.json"; exports ., ./effect, ./host, ./tui, and ./*; #plugin-source resolves to ./src/source.bun.ts on Bun and ./src/source.node.ts on Node/default.@opencode/plugin has optional peer dependencies @opencode/theme: "workspace:*", @opentui/core: ">=0.5.10", @opentui/solid: ">=0.5.10", and solid-js: ">=1.9.0"; direct dependencies include @ai-sdk/provider: "3.0.8", workspace packages @opencode/ai, @opencode/client, @opencode/protocol, @opencode/schema, @opencode/util, plus @standard-schema/spec, effect, and zod.Tool.Error handling in /home/byk/Code/opencode-v2-pilot/packages/core/src/tool.ts, packages/core/src/session/model-request.ts, packages/core/src/session/runner/step.ts, and packages/core/src/tool/runtime.ts; permission decline handling appears in packages/core/src/permission.ts and question cancellation handling in packages/core/src/tool/plugin/question.ts./home/byk/Code/opencode-v2-pilot/packages/core/src/session/model-request.ts is 409 lines. It defines IMAGE_BYTES_TRIGGER = 25 * 1024 * 1024 (25 MiB), IMAGE_BYTES_TARGET = 15 * 1024 * 1024 (15 MiB), and replacement text stating a removed image is no longer visible and must not be described from memory.SessionModelRequest.ExecuteError is Tool.Error | Permission.DeclinedError | QuestionTool.CancelledError; declineDefect() inspects died causes for Permission.DeclinedError or QuestionTool.CancelledError and resurfaces the first as a typed failure. User declines deliberately tunnel beneath leaf mapError handling as defects and resurface exactly once at SessionModelRequest.executeTool.SessionModelRequest.Prepared pairs an LLMRequest, StreamOptions, a retry hook, and request-scoped executeTool; unknown or hook-removed tool calls fail individually through this execution seam.baseTranscript() selects providerMetadataKey from model.route.providerMetadataKey ?? model.provider, uses the agent’s custom system prompt or SessionSystemPrompt.make() over tool names, filters empty system parts, and converts history through toLLMMessages().unsupportedParts() converts unsupported image/audio/video/PDF model inputs—including file content inside tool results—into ERROR: Cannot read ... (this model does not support ... input). Inform the user. text. boundImages() leaves requests at or below 25 MiB unchanged, then removes images in message order until estimated image content reaches at most the 15 MiB target.sessionHeaders() emits x-session-affinity, X-Session-Id, optional x-parent-session-id, User-Agent, x-opencode-project, x-opencode-session, and x-opencode-client; promptCacheKey() strips ses_ only from IDs matching /^ses_[0-9a-f]{64}$/.applyModelHooks() lets session.model.request hooks rewrite model base URL and HTTP headers. httpMiddleware() exposes each outbound exchange to session.http.request and session.http.response hooks using web-standard Request/Response, preserves request bodies as Uint8Array, and emits null bodies for HTTP statuses 204, 205, and 304.SessionModelRequest.prepare(), hook-visible tool definitions may be edited, renamed, moved, or removed. Definition object identity takes precedence over key lookup when resolving moved tools; hook-invented definitions matching neither an original object nor registry name are dropped; canonical tool.name is retained so renamed calls translate back to the original executor.SessionModelRequest.prepare() rejects incompatible provider context as a defect with Provider context is incompatible with the route selected by model request hooks if a routing hook changes deployment compatibility while compaction content exists.SessionModelRequest.prepare() enables HTTP middleware when either session.http.request or session.http.response hooks exist. Session WebSockets are enabled only when input.webSocket === "session", the model supports response WebSockets, the provider-specific OPENCODE_EXPERIMENTAL_<PROVIDER>_RESPONSES_WEBSOCKET flag is true, and no HTTP hooks are active.Prepared.executeTool invokes tools.execute({ ...input, definitions: hooked }) and uses Effect.catchCauseFilter(declineDefect, (decline) => Effect.fail(decline)); retry dispatches the session.retry hook./home/byk/Code/opencode-v2-pilot/packages/core/src/tool/runtime.ts enforces the tool execution contract at the untrusted plugin boundary: input is decoded first; foreign typed failures are converted to Tool.Error using their message/string form; existing Tool.Error is preserved; declines travel as defects and interrupts remain untouched.tool/runtime.ts treats output-contract violations as follows: returning output without an output schema dies with Tool result declared output without an output schema; omitting output when an output schema exists returns Tool.Error("Tool did not return its declared output"); invalid schema output becomes Tool.Error("Tool returned an invalid value for its output schema: ..."); non-JSON output becomes Tool.Error("Tool returned a non-JSON value for its output schema: ...")....and N more issue(s) when needed, include pretty-printed supplied arguments, and end with Update the arguments and call the tool again.tool/runtime.ts caches up to 100 converted JSON schemas. It detects draft-07 when $schema contains draft-07 or definitions exists; otherwise it uses draft 2020-12. Standard-schema JSON conversion targets draft-2020-12; Zod uses toJSONSchema(..., { target: "draft-2020-12", io }); unsupported vendors throw Schema vendor "<vendor>" does not support JSON Schema conversion.allOf properties, inlining acyclic local $ref definitions, preserving recursive references, and removing resolved/unused $defs.ToolEditor.add, while the heterogeneous Core registry deliberately erases registrations to Tool.Info and uses any at that internal boundary; unknown, JSON-value plumbing, casts, or compiled wrappers must not be introduced solely to preserve post-registration type safety.{ type: "tool" as const, messageID: context.messageID, id: context.id }.ToolFailure; catchCause must not be used because interruptions and defects must survive. Permission.DeclinedError and question dismissals must not be caught or converted by leaves; Permission.CorrectedError remains typed so the leaf converts it to ToolFailure and model execution continues.Tool.Service.transform; namespaces flatten names to <namespace>_<tool>; codemode defaults to true, while codemode: false retains a tool on the provider-native list; unregistered namespace strings remain valid but have no namespace description.Tool.Service.reload() rebuilds captured source data without changing precedence; registrations return real idempotent dispose Effects. The latest valid active registration for an effective name wins; update and remove ignore missing tools; updates preserve name and namespace; invalid updates retain the prior definition; only add creates tools; disposal reveals any earlier overridden definition.Tool.Service is Location-scoped and must not become process-global or be replaced by a separate application-tool service per Location. The registry has no Permission.Service dependency and performs no execution authorization; permission actions on registrations only support whole-tool visibility filtering, with most defaulting to effective name and edit, write, and patch sharing action edit.Tool.Snapshot.execute is the local execution boundary; generic output bounding happens later in the Session runner. Shell retains combined process output in a backing file and returns a bounded tail plus full-output path when truncated. A current architecture gap remains: future Session-scoped registrations need an explicit canonical registration design./home/byk/Code/opencode-v2-pilot/packages/plugin/src/promise/tool.ts is 69 lines. It exports CallID and Error, plus Metadata, Options, and Result types from @opencode/schema/tool; ToolContext is Tool.Context with async progress(update: Tool.Metadata): Promise<void>.Info<Input, Output> wraps Tool.Info with an async executor returning Promise<Tool.Result<Output>>. ToolEditor exposes ordered list(), get(id), namespace(namespace), generic add(tool), update(id, update), and remove(id); updates for missing IDs are ignored.execute.before with mutable input and canonical tool, sessionID, agent, messageID, and call id; and execute.after, which returns either { status: "completed", result } or { status: "error", error: Tool.Error }. ToolDomain contains transform, async reload(), and typed hook./home/byk/Code/opencode-v2-pilot/node_modules contained exactly 20 entries: .bin/, .bun/, @actions/, @ast-grep/, @aws-sdk/, @opencode-ai/, @opencode/, @tsconfig/, @types/, @typescript/, glob/, heap-snapshot-toolkit/, husky/, oxlint-tsgolint/, oxlint/, prettier/, semver/, sst/, turbo/, and typescript/; direct path /home/byk/Code/opencode-v2-pilot/node_modules/effect was not found.