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Fork Changes

Changes made in this fork (sendhil/opencode) on top of upstream (anomalyco/opencode).

Use this file to track what needs attention during upstream merges and which changes are safe to drop if upstream adopts the same fix.

Code Modifications

fix(prompt): mark skill slash command templates as synthetic

  • Files: packages/opencode/src/session/prompt.ts
  • Safe to drop on rebase: No — unless upstream adopts the same fix
  • Description: Skill content injected via slash commands (e.g. /brainstorming …) was displayed as the user's message in the TUI. Now marked synthetic: true on template-generated text parts so they're hidden from the UI but still sent to the LLM. A single visible part shows the slash command invocation the user typed.
  • Detect: cmd.source === "skill" branch in resolvePromptParts / template-resolution path of prompt.ts. If upstream adds the same gating, drop this commit.

fix(local): share stable sessions and skip updates for dev builds

  • Files: packages/opencode/src/cli/upgrade.ts, packages/opencode/src/installation/index.ts, packages/opencode/src/storage/db.ts + tests
  • Safe to drop on rebase: No — needed for running dev builds alongside stable installs
  • Description: Adds isEphemeralBuild(), usesSharedDatabase(), and shouldCheckForUpdates() helpers on the Installation module. Builds whose version starts with 0.0.0- OR contains -fork share the same SQLite database as the latest/beta channels and skip autoupdate checks, so running a locally built binary doesn't fork session history. The -fork recognition lets us override OPENCODE_VERSION (e.g. OPENCODE_VERSION=1.15.6-fork) at build time so external tools that parse opencode --version (e.g. Cmux's >=1.14.50 fork-support gate) still see a SemVer-shaped string while keeping local-build semantics intact. See LOCAL_BUILD.md for the env-var setup.

Doc/Tooling Only (safe to drop)

docs: local build guide + Claude skill

  • Files: LOCAL_BUILD.md, .claude/skills/local-build/SKILL.md, .gitignore

docs: upstream merge skill

  • Files: .claude/skills/upstream-merge/SKILL.md

Changes Previously Carried, Now Dropped

These lived on the fork at one point but have since been removed.

fix(tui): set fg before content to prevent white text in unstyled code blocks — DROPPED

  • Reason: Verified on upstream/dev tip — fenced code blocks, diffs, and markdown all render correctly on light themes without our patch. Either upstream fixed it via the markdown-renderable flip (#27421) or the underlying renderer changed. Re-add if regression observed; the fix is trivial (move fg attribute before content on <code>, <markdown>, <diff>).

feat(webfetch): readability extraction + session cache — DROPPED

  • Reason: Not actively used; the cf-mitigated retry portion of our original patch is now upstream. The readability extraction + per-session cache was a token optimization for webfetch-heavy sessions; not worth the ongoing rebase cost.

perf(tools): reduce tool description token usage — DROPPED

  • Reason: Upstream renamed bash.ts → shell.ts as part of a tool framework refactor (PR #23244 on anomalyco/opencode); the bash.txt file targeted by the trim no longer exists. Residual task.txt / todowrite.txt savings were marginal.

feat(tui): /clear slash command — DROPPED

  • Reason: Upstream still aliases /clear to /new (which navigates home and starts a fresh session). The fork's "preserve session, wipe messages" variant was nice-to-have; /new covers the common case.

fix(cache): split static/dynamic system prompt + cache instruction reads — DROPPED

  • Reason: Upstream packages/opencode/src/session/llm.ts already performs the two-part system-prompt split that our patch implemented (rejoins system.length > 2 && system[0] === header after the experimental.chat.system.transform plugin hook).