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v0.21.6

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@github-actions github-actions released this 20 May 15:19
· 560 commits to master since this release
v0.21.6
c169019

v0.21.6 — Hidden subagent isolation, TUI threshold visibility, doctor report size cap

What's New

  • TUI sidebar and /ctx-status header now show the execute threshold alongside the percentage. The header changes from 47.5% · 475K / 1.0M to a left/right layout: 47.5% / 65% on the left (current usage vs the execute threshold that triggers compaction), 475K / 1.0M on the right (absolute tokens vs the model's context window). Resolved per-model, so users with execute_threshold_percentage or execute_threshold_tokens overrides see the actual value applied to their session.

What's Fixed

  • Historian, dreamer, and sidekick can no longer spawn subagents or run unsafe tools. Each hidden agent now ships with a permission ruleset that denies everything by default and explicitly allows only the tools that agent actually needs:

    • Historian / compressor: read, aft_outline, aft_zoom (state-file offload + lightweight symbol navigation for accurate summaries)
    • Dreamer: read, grep, glob, bash, aft_outline, aft_zoom, ctx_memory, ctx_search, ctx_note (memory CRUD + verification against project source + smart-note evaluation via gh / git / curl). task, edit, write, webfetch, websearch stay denied.
    • Sidekick: ctx_search, ctx_memory, aft_outline, aft_zoom (memory retrieval + symbol-scoped structural context for /ctx-aug)

    Previously these agents inherited the full primary-agent tool surface and historian was occasionally observed dispatching task(subagent_type=explore) for repo-wide fanout, which contradicts its job of summarizing the input it was given. Allow-lists were derived from auditing real tool usage in the local OpenCode DB across hundreds of past historian and dreamer child sessions.

  • doctor --issue reports now respect GitHub's 64KB body limit. When the rendered report exceeds the budget, the main log section is truncated from the top (oldest lines dropped) with a visible [truncated for GitHub 64KB limit — older log lines dropped] marker. A new "Recent errors (last 20, sanitized)" section is always included before the main log so error context survives even when the bulk log gets clipped.

Upgrade

npx @cortexkit/magic-context@latest doctor --force

If OpenCode still loads a cached older plugin after upgrading the CLI, the --force flag clears the cached install so the new version takes effect on next launch.

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