CAP protocol both directions: agent speak plus orchestrator drivers (1.39.0)

- Agent side: --cap-manifest plus --cap-speak stream-json binding with
  transcript-diff frames, diff/transcript artifacts, session config
- Orchestrator: PTY driver (settle heuristics on PtyProc/TuiVtScreen),
  stream-json, ACP-stdio (permission/elicit/fs/terminal serving) and
  A2A drivers (dual draft/current spelling, SSE mapping)
- Sessions, fleets: worktrees, master plans, mediated routing,
  budget refusal, audit log, research auto-answerer, --cap CLI
- cap.md contract with drift tests; research/cap-protocol archive
- Suites 1119 + 16 green

research/cap-protocol/manifest-opencode.md

@@ -0,0 +1,47 @@
+# Example manifest: opencode
+
+## Metadata
+
+| Field | Value |
+|---|---|
+| Institute | Molodetz Institute — Research & Retrieval Division |
+| Subject | cap-protocol |
+| Document type | Source Dossier |
+| Tier | 1 |
+| Source title | CAP agent manifest for opencode |
+| Source URL | https://github.com/rsclaw-ai/cap-protocol/blob/main/examples/opencode.toml |
+| Source type | example config |
+| Source date (published) | Unknown, not stated (repo living file) |
+| Date researched | 2026-10-18 |
+| Researched by | tai (agent), model: Muse Spark, on behalf of retoor |
+| Research method | direct raw-file fetch, read in full (52 lines) |
+| Confidence | High |
+| Status | Active |
+
+## Summary
+
+PTY-shape manifest for opencode with `❯`/`›` idle alternatives and `^Error:` error lines; notably `ask_user` all-false except free_text, and no model_arg.
+
+## Key findings
+
+- No `model_arg`: drivers must cope with agents that accept no model flag (config `model` then has nowhere to go; warn, not fail).
+- Idle alternatives (`❯`, `›`) show the idle list is OR-matched across glyphs, matching multiple TUI states.
+- Like codex, lags STATUS.md, which routes opencode over ACP in practice.
+
+## Pros / strengths
+
+- Pins the no-model-arg and multi-glyph-idle cases tai's driver must handle.
+
+## Cons / limitations / caveats
+
+- Stale relative to the implementation (ACP is the real opencode path).
+
+## Relevance to tai
+
+Parser/driver fixture for the no-model-arg case and multi-pattern idle matching.
+
+## Changelog
+
+| Date | Change |
+|---|---|
+| 2026-10-18 | Initial dossier created. |