feat: opencode + cursor-agent adapters (sqlite + transcripts)#28
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0bserver07 merged 1 commit intomainfrom May 1, 2026
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feat: opencode + cursor-agent adapters (sqlite + transcripts)#280bserver07 merged 1 commit intomainfrom
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Adds two beta-flagged source adapters bringing supported provider count
to 8/16 from the codeburn catalog.
OpenCode (STACKUNDERFLOW_BETA_OPENCODE=1):
- Multi-DB discovery under $XDG_DATA_HOME/opencode/ (or
~/.local/share/opencode/) — scans for opencode*.db files.
- Reads session / message / part tables; joins parts onto messages to
assemble content_text and tool names.
- Cross-DB session_id encoding: f"{db_basename}:{session.id}" so two
DB files with overlapping inner UUIDs don't collide.
- Token mapping: input_tokens=tokens.input, output_tokens=tokens.output
+ tokens.reasoning, cache_read_tokens=tokens.cache.read,
cache_create_tokens=tokens.cache.write.
- Embedded message.cost stamped onto record.raw["embedded_cost"] for
parity checks against the recomputed value.
Cursor Agent (STACKUNDERFLOW_BETA_CURSOR_AGENT=1):
- Hybrid adapter reading transcripts from
~/.cursor/projects/{project}/agent-transcripts/.
- Two formats auto-detected by extension: legacy text (user: / A: /
[Tool call] / [Tool result] markers) and Composer 2 JSONL.
- Tokens estimated as len(text)//4; every Record gets
record.raw["cost_source"]="estimated".
- Optional SQLite metadata enrichment from
~/.cursor/ai-tracking/ai-code-tracking.db (conversation_summaries
table) for the model name; falls back to "cursor-agent" literal.
- seq is byte offset for both formats.
Pricers (registered in infra/providers/__init__.py):
- OpenCodePricer: claude-* → AnthropicPricer, gpt-* / codex-* →
OpenAIPricer, unknown → None. supports_per_message_tokens() = True.
- CursorAgentPricer: claude-* / gpt-* delegation, literal cursor-agent
fallback returns None. supports_per_message_tokens() = False
(estimated counts).
Both adapters default OFF. macOS-only for v1 on Cursor Agent; OpenCode
is OS-portable via XDG_DATA_HOME. codeburn-catalog §11 / §5.
Tests: 527 → 586 (59 new), all green. Lint clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Wave 3 closes the codeburn parity gap. Adds 12 new beta adapters across five PRs covering all remaining providers in codeburn's catalog: - #27 KiloCode, Roo Code (Cline parser reuse) - #28 OpenCode (SQLite session/message/part), Cursor Agent (text+JSONL+SQLite) - #29 Qwen, Gemini (JSONL with normalization) - #30 Copilot (legacy + VS Code transcripts), Codeium (discovery stub), Continue (defensive SQLite parser) - #31 Droid, Kiro, OpenClaw, Pi/OMP (JSONL family) All beta-flagged off by default. 805 backend tests passing (was 527 in v0.4.0). Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Two new beta-flagged source adapters land in this PR, taking the StackUnderflow supported provider count to 8 of 16 from the codeburn catalog (this PR alone).
stackunderflow/adapters/opencode.py, gated bySTACKUNDERFLOW_BETA_OPENCODE=1) — multi-DB discovery under$XDG_DATA_HOME/opencode/(or~/.local/share/opencode/); readssession/message/parttables; encodes session id asf"{db_basename}:{session.id}"to avoid cross-DB UUID collisions; collapses the 5-key OpenCode token shape onto our canonical 4-key shape (reasoning folds into output,cache.{read,write}map tocache_read/cache_create); embeddedmessage.costis stamped onrecord.raw["embedded_cost"]for parity checks.stackunderflow/adapters/cursor_agent.py, gated bySTACKUNDERFLOW_BETA_CURSOR_AGENT=1) — hybrid: reads transcripts from~/.cursor/projects/{project}/agent-transcripts/in two formats (legacy text withuser:/A:/[Tool call]markers, and Composer 2 JSONL), auto-detected by extension. An optional SQLite attribution DB (~/.cursor/ai-tracking/ai-code-tracking.db,conversation_summariestable) enriches the model name; missing DB falls back to"cursor-agent". Tokens are estimated aslen(text)//4and every Record carriesrecord.raw["cost_source"]="estimated".seqis the byte offset of the line / record start so resume works across both formats.infra/providers/__init__.py.OpenCodePricerandCursorAgentPricerroute by model prefix:claude-*→AnthropicPricer,gpt-*/codex-*→OpenAIPricer, unknown →None(cost layer surfaces "no rate" rather than mispricing).OpenCodePricer.supports_per_message_tokens()isTrue;CursorAgentPricerisFalse(estimated tokens).XDG_DATA_HOME. Adapter docstring +_beta_enabledwiring updated instackunderflow/adapters/__init__.py.Test plan
pytest tests/ -q— 586 passed, 2 skipped (baseline was 527; 59 new tests covering both adapters via targeted assertions and the inheritedAdapterContractmixin, plus pricer routing tests for each provider).ruff check stackunderflow/ --select E,F --exclude="*/build.py"— clean.STACKUNDERFLOW_BETA_OPENCODE=1 STACKUNDERFLOW_BETA_CURSOR_AGENT=1 python -c "from stackunderflow.adapters import registered; print([a.name for a in registered()])"→['claude', 'codex', 'opencode', 'cursor-agent'].CHANGELOG
[Unreleased]### Addedupdated with one entry covering both adapters, the SQLite + multi-format complexity, env vars, and thecost_source/embedded_coststamps.🤖 Generated with Claude Code