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feat(SESF-75): hide agent-* transcripts from get_issue_timeline by default - #137
Subagent and compaction transcripts (session IDs that start with agent-) crowd some issue timelines. On 2026-11-05, 65 of the 940 issues with 10 or more tagged turns were at least 30% agent-* turns (STRK-29: 237 of 269). Search keeps these rows. In the nightly evals they fill 4–6% of top-10 slots, close to their 5.4% share of the index, and two eval queries (id-11, cp-01) are answered only by agent-* rows. SESF-106 covers a possible search rank penalty.
Changes
provider_adapters.is_subagent_session is the one check; list_sessions uses it too.
rag_engine.get_issue_timeline(include_subagents=False) filters inside _passes, before the collector, so limit counts visible turns. It returns TimelineResult, a list that carries hidden_subagents (distinct doc IDs that passed every other filter).
get_issue_timeline_async now forwards newest and include_subagents.
sessions_by_issue passes include_subagents=True, so get_memory_context is unchanged.
MCP get_issue_timeline takes include_subagents (strict bool) and ends its output with a hidden-count line. GET /timeline takes include_subagents=true|false (400 otherwise) and adds hidden_subagents to the envelope.
README, CHANGELOG, CLAUDE.md and AGENTS.md updated.
Tests
13 new tests in tests/test_issue_timeline.py, written first. ruff check . is clean, and the full suite passes against a local Postgres 17 (1508 passed, 3 skipped for the parity model cache). Vale reports no alerts on the added lines.
Version: 0.22.0 (minor): new include_subagents parameter, and the timeline's default output changes.
Summary by CodeRabbit
New Features
Timeline results now hide subagent and compaction transcript turns by default, with a count of hidden turns included in the output.
Use include_subagents=true to show those turns. The option is available in timeline requests and the HTTP endpoint.
Timeline limits apply to visible turns; search results continue to include subagent turns.
…fault
Subagent and compaction transcripts (session IDs starting with agent-)
dominate some issue timelines: 65 of 940 issues with 10+ tagged turns
were at least 30% agent-* turns on 2026-11-05. Search keeps these rows:
nightly evals put them at their index share, and two eval answers live
only in agent-* rows.
- provider_adapters.is_subagent_session, shared with list_sessions
- get_issue_timeline(include_subagents=False) filters before the
collector, so limit counts visible turns; it returns a TimelineResult
list carrying hidden_subagents
- get_issue_timeline_async forwards newest and include_subagents
- sessions_by_issue keeps agent-* rows, so memory context is unchanged
- MCP tool and GET /timeline take include_subagents; the MCP output and
the HTTP envelope report the hidden count
Issue timelines now hide agent- subagent and compaction turns by default, count hidden turns, and accept an option to include them. The MCP tool and HTTP endpoint expose the option. Search results continue to include those turns.
Changes
Issue timeline subagent handling
Layer / File(s)
Summary
Timeline filtering and result handling provider_adapters.py, rag_engine.py, session_listing.py, tests/test_issue_timeline.py
The timeline engine uses a shared subagent-session detector. It excludes matching turns by default after other filters, counts distinct hidden document IDs, and does not count hidden turns toward the limit. The async wrapper forwards the inclusion option. Session grouping explicitly includes subagent rows. Tests cover filtering, counting, limits, and forwarding.
MCP and HTTP timeline interfaces tools.py, http_server.py, tests/test_issue_timeline.py
The MCP tool accepts a boolean include_subagents option and formats a hidden-turn notice, including for empty results. The HTTP endpoint accepts only "true" or "false" and returns hidden_subagents in its JSON response. Tests cover both interfaces.
Documentation and release version AGENTS.md, CHANGELOG.md, CLAUDE.md, README.md, version.py
The documentation describes the default exclusion, the inclusion option, and hidden-turn reporting. The changelog adds the 0.22.0 entry, and the package version changes to 0.22.0.
sequenceDiagram
participant MCPCaller
participant TimelineTool
participant TimelineAsync
participant TimelineEngine
participant HttpCaller
participant TimelineEndpoint
MCPCaller->>TimelineTool: Request timeline with include_subagents
TimelineTool->>TimelineAsync: Forward validated option
TimelineAsync->>TimelineEngine: Query issue timeline
TimelineEngine-->>TimelineAsync: TimelineResult with hidden_subagents
TimelineAsync-->>TimelineTool: Return timeline result
TimelineTool-->>MCPCaller: Formatted turns and hidden-turn notice
HttpCaller->>TimelineEndpoint: GET /timeline with include_subagents
TimelineEndpoint->>TimelineEngine: Query issue timeline
TimelineEngine-->>TimelineEndpoint: TimelineResult with hidden_subagents
TimelineEndpoint-->>HttpCaller: JSON response with hidden_subagents
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Possibly related PRs
lbruton/SessionFlow#135: Updates issue-ID extraction and validation used by get_issue_timeline.
lbruton/SessionFlow#74: Revises the MCP descriptions and schemas for session tools, including get_issue_timeline.
Merge Risk: Moderate · previous review fd86f
Some issue timelines can omit eligible turns despite having room under the visible-turn limit. Resolve the FTS window before merging unless this limitation is explicitly accepted.
Pre-merge checks: 4
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The title names the primary change: get_issue_timeline now hides agent-* subagent transcripts by default. The objectives and file summaries confirm this is the main behavior change, with include_subag…
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Explanation
The title names the primary change: get_issue_timeline now hides agent-* subagent transcripts by default. The objectives and file summaries confirm this is the main behavior change, with include_subagents added as the opt-in. The title is short, specific, and uses the ticket prefix the team appears to use.
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Agent turns slip behind the screen A count records what stays unseen Set the flag to bring them through MCP and HTTP pass it too Search keeps every turn in view
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🟡 Changes recommended
The hidden-subagent count can underreport qualifying FTS-only matches beyond the 500-row fallback cap, making MCP and HTTP notices inaccurate until the count is made complete or clearly bounded.
This pull request updates issue timelines to hide agent-* subagent and compaction transcript turns by default while preserving them in search and memory-context flows.
Changes:
Adds include_subagents filtering across the engine, MCP tool, and HTTP endpoint.
Centralizes subagent-session detection and reports hidden-turn counts.
Adds regression tests, documentation updates, changelog entries, and version 0.22.0.
Review findings include an incomplete hidden count when FTS results exceed the 500-row cap, misleading wording when all matching turns are hidden, and a stale API reference in DocVault/Overview.md.
File
Summary
version.py
Bumps the project version to 0.22.0.
tools.py
Adds MCP schema validation, parameter forwarding, and hidden-turn formatting.
tests/test_issue_timeline.py
Covers filtering, counts, transports, formatting, and opt-in behavior.
session_listing.py
Reuses the shared subagent-session predicate.
README.md
Documents timeline filtering and hidden-turn reporting.
rag_engine.py
Implements timeline filtering, TimelineResult, hidden counts, and async forwarding.
provider_adapters.py
Defines the shared agent-* session predicate.
http_server.py
Parses include_subagents and returns hidden-count metadata.
CLAUDE.md
Updates project guidance for timeline and session filtering.
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Actionable comments posted: 1
Fix comments: Fix CodeRabbit comments on this PR
Prompt to fix all issues
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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
Review comments at @rag_engine.py:
- Around line 2283-2285: Update the timeline’s FTS retrieval and filtering
around is_subagent_session so hidden subagent hits do not consume the visible
timeline window. Continue retrieving and filtering matches beyond the initial
FTS limit until the visible feed is filled and the hidden count is complete,
while preserving the existing exclusion behavior.
After applying the fix, consider running `coderabbit review --agent` for local
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Reviewing files that changed from the base of the PR and between 7d5eb0c and fd86fb6.
Files selected for processing: 11
AGENTS.md
CHANGELOG.md
CLAUDE.md
README.md
http_server.py
provider_adapters.py
rag_engine.py
session_listing.py
tests/test_issue_timeline.py
tools.py
version.py
Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review.
…S caps
The timeline's keyword fallback fetches at most _TIMELINE_FTS_FETCH_CAP
rows, so FTS-only agent-* turns past that window are not counted.
TimelineResult.hidden_subagents_capped is true when the fallback fills
its window; the MCP line then says 'At least N' and GET /timeline
returns hidden_subagents_capped.
The keyword fallback fetched one LIMIT window and dropped agent-* rows
afterwards, so a window full of hidden rows could push visible untagged
matches out. The visible query now excludes agent-* sessions in SQL
(session_id NOT LIKE 'agent-%'), and a second query over agent-*
sessions alone feeds hidden_subagents and hidden_subagents_capped.
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🟡 Changes recommended
A moderate issue remains in tools.py: when the capped FTS slice lacks an agent row, the warning is suppressed even though hidden turns may exist in the unseen tail, obscuring the lower-bound result.
When the agent-* FTS query fills its window but none of its rows pass
the timeline filters, more qualifying rows can sit past the window.
format_timeline now says hidden turns may exist in that case.
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🟢 Approval recommended
The supplied review status identifies no active issues blocking approval, with the documented changes and supporting updates treated as sufficient for the assessment.
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🔵 Needs a closer look
Human assessment is needed because moderate hidden issues affect default timeline completeness and the accuracy of hidden-session counts, making the change too complex to approve without further review.
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SESF-75, re-scoped to the timeline only.
Why
Subagent and compaction transcripts (session IDs that start with
agent-) crowd some issue timelines. On 2026-11-05, 65 of the 940 issues with 10 or more tagged turns were at least 30%agent-*turns (STRK-29: 237 of 269). Search keeps these rows. In the nightly evals they fill 4–6% of top-10 slots, close to their 5.4% share of the index, and two eval queries (id-11,cp-01) are answered only byagent-*rows. SESF-106 covers a possible search rank penalty.Changes
provider_adapters.is_subagent_sessionis the one check;list_sessionsuses it too.rag_engine.get_issue_timeline(include_subagents=False)filters inside_passes, before the collector, solimitcounts visible turns. It returnsTimelineResult, a list that carrieshidden_subagents(distinct doc IDs that passed every other filter).get_issue_timeline_asyncnow forwardsnewestandinclude_subagents.sessions_by_issuepassesinclude_subagents=True, soget_memory_contextis unchanged.get_issue_timelinetakesinclude_subagents(strict bool) and ends its output with a hidden-count line.GET /timelinetakesinclude_subagents=true|false(400 otherwise) and addshidden_subagentsto the envelope.Tests
13 new tests in
tests/test_issue_timeline.py, written first.ruff check .is clean, and the full suite passes against a local Postgres 17 (1508 passed, 3 skipped for the parity model cache). Vale reports no alerts on the added lines.Version: 0.22.0 (minor): new
include_subagentsparameter, and the timeline's default output changes.Summary by CodeRabbit
include_subagents=trueto show those turns. The option is available in timeline requests and the HTTP endpoint.