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OpenCode GraphAgent v1.0.83

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@github-actions github-actions released this 21 Oct 19:47
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Learn about vigilant mode.

opencode 1.0.83

Stable release from main branch. This release removes avoidable work from interface and runtime hot paths, keeps the prompt cache intact across a turn, hardens core agent tools against silent data loss, and repairs DAG review pipelines and replans.

🐛 Bug Fixes

  • DAG review pipelines reach a decision (#856, #857).

    • When a review route's verification fails, the lanes gated on it are skipped. The decision node over those lanes is now scheduled in the same round instead of staying pending forever.
    • By default, the verification gate now reports to the parent, so the parent sees a FAIL verdict and can reopen the workflow with extend. An explicit report_to_parent still takes precedence.
    • A failed optional review lane no longer fails the required decision. Strict input mappings receive the same explicit Dependency "x" failed: <reason> text that default mappings use.

  • Replans rewrite the path instead of breaking it (#856, #857).

    • A replan that cancels a running required node and rewires its old dependents keeps running. Only the runtime that matches the durable graph revision may finish a workflow.
    • A replan that adds a dependency on a node superseded by an earlier replan is now rejected with guidance. Before, the edge was silently dropped and the new node ran as a root.
    • When a rebuilt, queued attempt is refused re-admission, the live attempt keeps its fiber, so cancel still interrupts the real child session.

  • Verdicts are read the same way everywhere (#857). Condition gates, the replan checkpoint and review checks share one normalization:

    • JSON strings and a single code fence are parsed.
    • Verdict values are matched case-insensitively.

    Before, a schemaless verification could satisfy a condition gate and then fail its review input check.

  • Tools no longer lose data silently (#854, #855).

    • edit and apply_patch refuse to rewrite files that are not valid UTF-8. Before, every non-UTF-8 byte across the file was replaced with U+FFFD. write and deletion are unchanged.
    • An apply_patch move onto the same path is an in-place update. Before, the file was written and then deleted.
    • edit with replaceAll keeps $&, $$ and $' in the replacement literal.

  • Agents see real failures (#854, #855).

    • A task whose child ended on a provider or output error now returns a tool error in the foreground and task_error in the background. Before, it reported a completed task with an empty or partial answer. Cancellation is unchanged.
    • webfetch refuses binary responses such as PDFs and archives instead of decoding them into noise.
    • A 4xx response whose body merely contains a number such as 150000 is no longer retried five times with the full context.

  • Search stays useful on real repositories (#854, #855).

    • A match on a non-UTF-8 line is decoded instead of failing the whole search. An oversized match in a minified file is skipped instead of discarding every other match.
    • Grep output now stays within the shared 50 KB output budget.

  • Prompts match the tools that exist (#855). The codex system prompt and the shell tool description no longer direct apply_patch models to Edit and Write tools they do not have.

No public HTTP shape, durable event version, database schema or migration changed. The report_to_parent description in the workflow tool schema changed.

🏗️ Architecture / Refactor

  • Lighter hot paths (#854, #855).
    • Streaming shell output is coalesced into at most one durable part update every 200 ms. Before, there was one update per chunk: a 40-chunk command wrote 40 events.
    • A preview is published only after its chunk, including any spill to the truncation file, has been fully handled.
    • The 250 ms DAG mailbox scan reads without taking SQLite's write reservation.
    • apply_patch waits for LSP diagnostics on all edited files concurrently instead of one file at a time.
  • Stable prompt prefix within a turn (#855).
    • The todo reminder is now decided once per user message. Before, a mid-turn todowrite changed text placed ahead of every tool round-trip, which invalidated the cached prompt for the rest of the turn.
    • Current todo state still reaches the model at the tail, through the existing pre-tool-call reminder.
  • Responsive TUI (#855).
    • The DAG inspector keeps an unchanged two-second snapshot instead of rebuilding every wave row.
    • Session hydration merges messages and parts through indexes rather than nested scans.

🧪 Test Summary

Branch evidence (each new regression failed on the previous main and passes):
  Opencode tool + session + mailbox suites:   710 passed, 0 failed
  Opencode DAG suites (test/dag):           1,021 passed, 3 skipped, 0 failed
  DAG core gate (test:dag-core):              all behavior and coverage floors passed
  Core DAG + ripgrep suites:                  201 passed, 0 failed
  TUI suite:                                  312 passed, 0 failed
  Workspace typecheck:                        31/31 tasks passed
  Lint:                                       4,673 warnings, 0 errors (cap 4,675)

Tests that bind local ports were run outside the sandbox. The new regressions cover:

  • Interface and runtime: chatty shell output, concurrent diagnostics.
  • Prompt and retries: a stable turn reminder across a mid-turn todowrite, a 4xx body with token counts.
  • Tools: GBK files, a move onto the same path, an errored child task, binary fetches, and a mixed grep over GBK, minified and plain files.
  • DAG pipelines: a failed verification that reaches the parent and reopens via extend, a crashed optional lane, a replan that cancels a required node, a dependency on a superseded node, fenced and upper-case verdicts, and a rejected re-admission.

🔍 Verification

  • Every fix landed through a pull request with its own commit and with the required native checks passing on its head. The checks are Typecheck, Unit Tests (linux) and both E2E platforms.
  • An audit of the interface, runtime, agent tools, prompts and DAG engine selected these fixes. Candidates that would change persisted contracts or product policy were left out of this release.
  • Examples left out:
    • Classifying block review lanes for the advanced model tier, which needs a new node field.
    • Narrowing how parent mailboxes are discarded on cancellation.

Full changelog: graphagent-v1.0.82...graphagent-v1.0.83

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