plugin API: v2 plugins cannot list child sessions, read live provider pricing, or learn the server URL #19

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1. dezren39 commented on Oct 27, 2026

   

   dezren39

   on Oct 27, 2026

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   Intake review

   Filed by Drew 2026-10-17 while porting the tokenscope plugin from v1 to v2: five concrete API losses in the v2 plugin Context (packages/plugin/src/promise/plugin.ts). Still live at intake — no merged PR found restoring any of the five, and the issue has had no triage labels until now. Effort/l: this is plugin-API design + implementation across several surfaces, and it needs a maintainer-shaped decision on what the v2 API should expose (design first, then implement — a design note on the issue would unblock scoping). Related: the tokenscope port is the consumer; per-subagent cost breakdown is the headline use case.

   — Fleet monitor intake enrichment (protocol §5): acceptance criteria appended to the body where missing, labels normalised, meta/enriched added. Liveness checked against merged PRs / related issues at intake; no merged PR explicitly resolves this issue, so it stays open.
2. dezren39

   added

   meta/enrichedIntake review done: acceptance criteria, links, and normalized labels addedIntake review done: acceptance criteria, links, and normalized labels added

   kind/featureNew feature or capability requestNew feature or capability request

   source/humanFiled directly by a humanFiled directly by a human

   status/needs-triageNot yet triaged; needs a first lookNot yet triaged; needs a first look

   priority/normalOrdinary priority (the default)Ordinary priority (the default)

   effort/lLarge: multi-day or open-ended; expect staged check-insLarge: multi-day or open-ended; expect staged check-ins

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   status/needs-triageNot yet triaged; needs a first lookNot yet triaged; needs a first look

   on Oct 27, 2026
3. dezren39 commented on Oct 28, 2026

   

   dezren39

   on Oct 28, 2026

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   🤖 Agent note · picked up

   • Agent: queue worker (repo-worker-opencode)
   • Session / ID: queue task 2048
   • Found via: queue claim
   • Task: Triage issue plugin API: v2 plugins cannot list child sessions, read live provider pricing, or learn the server URL #19 — verify the v2 plugin Context gaps (child sessions, live pricing, server URL, catalog, context) against current main, then route or close with evidence
   • Expectation: effort/l feature; triage done = per-gap verdict backed by code citation at HEAD plus scoped follow-up routing if confirmed
   • Links: queue task 2048
4. dezren39 commented on Oct 28, 2026

   

   dezren39

   on Oct 28, 2026

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   🤖 Agent note · done

   • Agent: queue worker (repo-worker-opencode)
   • Session / ID: queue task 2048 (triage); follow-up fix task 2684
   • Found via: queue claim
   • Task: Triage verdict for issue plugin API: v2 plugins cannot list child sessions, read live provider pricing, or learn the server URL #19 — PARTIALLY CONFIRMED at current main; the confirmed remainder is routed to a scoped fix packet
   • Expectation: done = per-gap verdict backed by code citation at HEAD + follow-up packet enqueued (met)
   • Links: follow-up queue task 2684 (kind small_fix, dedupe repo-health:v1:fix:developing-today/opencode:issue:19)

   Per-gap verdict at HEAD 88ecd395ae846401b861c07413337a162f30f2c2 (2026-10-28):

   1. Child sessions — CONFIRMED (for plugins). The client SessionApi has list, and SessionListInput accepts a parentID filter (packages/client/src/effect/api/api.ts:121-135), but the plugin SessionDomain (packages/plugin/src/promise/session.ts) is a Pick<SessionApi, …> that omits list (and stats). A v2 plugin therefore cannot enumerate child sessions even though the server/client can.
   2. Server URL — CONFIRMED. The plugin Context interface (packages/plugin/src/promise/plugin.ts) exposes app, location, options and domain objects only — no serverUrl, no client. Anything that called the HTTP API from a v1 plugin still can't.
   3. Live pricing — NOT a gap at HEAD. Model.Info carries cost: Array<Cost> (input/output/cache, USD per million tokens — packages/schema/src/model.ts), ModelApi.list returns Model.Info[], and the plugin ModelDomain extends ModelApi. Pricing is already readable via ctx.model.list(); what is missing is documentation saying so.
   4. Agent/skill catalog — enumeration exists. AgentDomain/SkillDomain expose list() editors returning Agent.Info[]/Skill.Info[]. Token-cost estimation from those listings is plugin-side; this needs a documented decision, not a new API.
   5. Session context — context is in the plugin Pick; its post-compaction-only behaviour is left for the follow-up to document as intentional or file separately.

   Issue stays open; the fix (items 1–2 in code, 3–5 as documentation) is queued as task 2684.
5. dezren39

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8. dezren39 commented on Oct 29, 2026

   

   dezren39

   on Oct 29, 2026

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   🤖 Agent note · parked

   • Agent: queue worker (repo-worker-opencode)
   • Session / ID: queue task 2684, run 2026-10-29T01:16Z
   • Found via: queue claim (resume of parked task)
   • Task: Re-checked CI on PR feat(plugin): expose child session listing and server URL to v2 plugins #766 (child-session listing + serverUrl for v2 plugins, Closes plugin API: v2 plugins cannot list child sessions, read live provider pricing, or learn the server URL #19). Run 40788842854 still not complete after the 5-minute poll window: aggregate e2e jobs queued at 01:23Z. Typecheck/build/nix/pr-standards pass; unit (linux+windows) fail — prior analysis says only @opencode/tui (untouched by this PR, known unit: two permission-focus tests fail on linux + windows (pre-existing) #565) but logs are unavailable until the run completes; e2e app-2 shards (linux+windows) also failed since the last park and are not yet log-verified. Not merging on assumptions.
   • Expectation: On resume, once the run completes, log-verify unit failures are only the known unit: two permission-focus tests fail on linux + windows (pre-existing) #565 TUI tests and check the e2e app-2 failures; if green/only-#565, merge PR feat(plugin): expose child session listing and server URL to v2 plugins #766 and complete task 2684.
   • Links: PR feat(plugin): expose child session listing and server URL to v2 plugins #766 · branch queue/2684-19-plugin-child-sessions · head 075d054
9. dezren39

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10. dezren39

    closed this as completedin #766on Oct 29, 2026
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12. dezren39 commented on Oct 29, 2026

    

    dezren39

    on Oct 29, 2026

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    🤖 Agent note · state: done (merged)

    • Agent: queue worker Lane A (repo-queue-worker-shift-opencode), queue task 2684 (resumed from Lane B's park)
    • Outcome: PR feat(plugin): expose child session listing and server URL to v2 plugins #766 MERGED (merge commit 59d692b, 2026-10-29T02:06:41Z) — this issue auto-closed.
    • CI log-verification (run 40788842854, head 075d054): unit (linux) job 123168712663 and unit (windows) job 123168712567 each fail ONLY on the 2 known unit: two permission-focus tests fail on linux + windows (pre-existing) #565 TUI permission-focus tests (1511 pass / 2 fail linux) — and unit: two permission-focus tests fail on linux + windows (pre-existing) #565 itself was fixed and merged tonight (PR test(tui): provide Route context in permission input-scope tests #789), so that pair no longer stands on main. E2e app-2 shards (jobs 123181105088 linux / 123181105155 windows) fail only on the known ci(app): e2e app-2 regression specs fail on subagent navigation/timeline visibility — reproduced on unrelated PR #607 (attempts 1+2) #631 specs (child-session title visibility, timeline trigger); all other e2e shards pass. Typecheck, build (both OS), nix-eval, affected packages, check-standards/compliance/duplicates all SUCCESS. Aggregate e2e still queued at merge (precedent fix(core): ModelUsage.dayReports loses or corrupts a provider whose id collides with Object.prototype — '__proto__' vanishes, 'constructor' reports NaN #673). Mergeability re-verified against main 98aef74 (merge-tree clean) immediately before merging.
    • Queue: task 2684 completed (verified done in queue state). Transient labels removed.
13. dezren39

    removed

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14. dezren39

    added a commit that references this issue on Oct 30, 2026

    docs(roadmap): drop landed rows (#78/#81/#82/#8/#19) (#890)

    05dcca9