From d997ccc601c929f9279009bdf0ad45f46ce39dd6 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 15 Jul 2026 18:15:02 +0000
Subject: [PATCH 1/3] plan: ensure experiment JSONL entries include workflow
 run id

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>
---
 .github/workflows/architecture-guardian.lock.yml   | 1 +
 .github/workflows/blog-auditor.lock.yml            | 1 +
 .github/workflows/ci-coach.lock.yml                | 1 +
 .github/workflows/daily-doc-healer.lock.yml        | 1 +
 .github/workflows/daily-issues-report.lock.yml     | 1 +
 .github/workflows/daily-news.lock.yml              | 1 +
 .github/workflows/draft-pr-cleanup.lock.yml        | 1 +
 .github/workflows/plan.lock.yml                    | 1 +
 .github/workflows/stale-pr-cleanup.lock.yml        | 1 +
 .github/workflows/weekly-blog-post-writer.lock.yml | 1 +
 10 files changed, 10 insertions(+)

diff --git a/.github/workflows/architecture-guardian.lock.yml b/.github/workflows/architecture-guardian.lock.yml
index 2e1612ed77a..14bf25b1f9a 100644
--- a/.github/workflows/architecture-guardian.lock.yml
+++ b/.github/workflows/architecture-guardian.lock.yml
@@ -1792,6 +1792,7 @@ jobs:
           GH_AW_EVALS_QUESTIONS: '[{"id":"violations-analyzed","question":"Did the workflow analyze changed Go or JavaScript files from the last 24 hours for architecture violations, or correctly conclude there were none?"},{"id":"issue-created-or-noop","question":"Was an architecture report issue created when violations were found, or was noop or skip behavior used appropriately when there was nothing actionable?"}]'
           GH_AW_EVALS_MODEL: "small"
           GH_AW_EVALS_PHASE: parse
+          GITHUB_RUN_ID: ${{ github.run_id }}
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/blog-auditor.lock.yml b/.github/workflows/blog-auditor.lock.yml
index 535260cc1d3..73044875ffd 100644
--- a/.github/workflows/blog-auditor.lock.yml
+++ b/.github/workflows/blog-auditor.lock.yml
@@ -1857,6 +1857,7 @@ jobs:
           GH_AW_EVALS_QUESTIONS: '[{"id":"audit-completed","question":"Did the workflow complete the blog availability audit, including page access and content validation checks?"},{"id":"discussion-created","question":"Was an audit discussion created summarizing the pass or fail results and suggested remediation when needed?"}]'
           GH_AW_EVALS_MODEL: "small"
           GH_AW_EVALS_PHASE: parse
+          GITHUB_RUN_ID: ${{ github.run_id }}
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/ci-coach.lock.yml b/.github/workflows/ci-coach.lock.yml
index 6bf5ab0efcf..d3ab17ed7bd 100644
--- a/.github/workflows/ci-coach.lock.yml
+++ b/.github/workflows/ci-coach.lock.yml
@@ -1843,6 +1843,7 @@ jobs:
           GH_AW_EVALS_QUESTIONS: '[{"id":"repair-or-optimization-path","question":"Did the workflow check validation-status first and then follow the correct repair or optimization path for this run?"},{"id":"pr-created-or-noop","question":"Was a focused CI improvement pull request created when actionable work was found, or was noop called when CI was already healthy?"}]'
           GH_AW_EVALS_MODEL: "small"
           GH_AW_EVALS_PHASE: parse
+          GITHUB_RUN_ID: ${{ github.run_id }}
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-doc-healer.lock.yml b/.github/workflows/daily-doc-healer.lock.yml
index b108fc219dd..c7ea55cde8c 100644
--- a/.github/workflows/daily-doc-healer.lock.yml
+++ b/.github/workflows/daily-doc-healer.lock.yml
@@ -1970,6 +1970,7 @@ jobs:
           GH_AW_EVALS_QUESTIONS: '[{"id":"gaps-confirmed","question":"Did the workflow identify at least one confirmed documentation gap to fix, or correctly conclude that no actionable gap remained?"},{"id":"pr-issue-or-noop","question":"Was a documentation pull request or issue created for confirmed gaps, or was noop used appropriately when nothing required action?"}]'
           GH_AW_EVALS_MODEL: "${{ needs.activation.outputs.model_size }}"
           GH_AW_EVALS_PHASE: parse
+          GITHUB_RUN_ID: ${{ github.run_id }}
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-issues-report.lock.yml b/.github/workflows/daily-issues-report.lock.yml
index a01527c95c0..4218bec6d89 100644
--- a/.github/workflows/daily-issues-report.lock.yml
+++ b/.github/workflows/daily-issues-report.lock.yml
@@ -2036,6 +2036,7 @@ jobs:
           GH_AW_EVALS_QUESTIONS: '[{"id":"report-generated","question":"Did the workflow analyze the prefetched issues data and generate a clustered daily issues report with metrics and trends?"},{"id":"discussion-created","question":"Was a daily issues discussion created successfully with the report findings and recommendations?"}]'
           GH_AW_EVALS_MODEL: "small"
           GH_AW_EVALS_PHASE: parse
+          GITHUB_RUN_ID: ${{ github.run_id }}
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-news.lock.yml b/.github/workflows/daily-news.lock.yml
index 64da77c50b2..8783ab81823 100644
--- a/.github/workflows/daily-news.lock.yml
+++ b/.github/workflows/daily-news.lock.yml
@@ -1965,6 +1965,7 @@ jobs:
           GH_AW_EVALS_QUESTIONS: '[{"id":"digest-generated","question":"Did the workflow analyze the prefetched repository activity and generate a coherent daily news digest?"},{"id":"discussion-created","question":"Was a daily-news discussion created or updated successfully with the report output?"}]'
           GH_AW_EVALS_MODEL: "copilot/gpt-5.4"
           GH_AW_EVALS_PHASE: parse
+          GITHUB_RUN_ID: ${{ github.run_id }}
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/draft-pr-cleanup.lock.yml b/.github/workflows/draft-pr-cleanup.lock.yml
index bc855a84b50..d0a9dc20b9f 100644
--- a/.github/workflows/draft-pr-cleanup.lock.yml
+++ b/.github/workflows/draft-pr-cleanup.lock.yml
@@ -1765,6 +1765,7 @@ jobs:
           GH_AW_EVALS_QUESTIONS: '[{"id":"stale-drafts-triaged","question":"Did the workflow review open draft pull requests and classify stale drafts according to the warning and cleanup policy?"},{"id":"warnings-or-closures-applied","question":"Were the expected labels, comments, and closures applied to stale draft pull requests when appropriate?"}]'
           GH_AW_EVALS_MODEL: "small"
           GH_AW_EVALS_PHASE: parse
+          GITHUB_RUN_ID: ${{ github.run_id }}
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/plan.lock.yml b/.github/workflows/plan.lock.yml
index 51073d47135..f4f285d33b0 100644
--- a/.github/workflows/plan.lock.yml
+++ b/.github/workflows/plan.lock.yml
@@ -1904,6 +1904,7 @@ jobs:
           GH_AW_EVALS_QUESTIONS: '[{"id":"subissues-planned","question":"Did the workflow analyze the triggering issue or discussion and break the work into actionable sub-issues?"},{"id":"issue-actions-completed","question":"Were the planned sub-issues created successfully, with discussion closure handled correctly when required?"}]'
           GH_AW_EVALS_MODEL: "small"
           GH_AW_EVALS_PHASE: parse
+          GITHUB_RUN_ID: ${{ github.run_id }}
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/stale-pr-cleanup.lock.yml b/.github/workflows/stale-pr-cleanup.lock.yml
index b13c8de2d8d..0c71624650e 100644
--- a/.github/workflows/stale-pr-cleanup.lock.yml
+++ b/.github/workflows/stale-pr-cleanup.lock.yml
@@ -1754,6 +1754,7 @@ jobs:
           GH_AW_EVALS_QUESTIONS: '[{"id":"stale-prs-triaged","question":"Did the workflow review pull requests open for 30 or more days and classify them according to the cleanup policy?"},{"id":"actions-taken-or-noop","question":"Were the appropriate stale PR comments, labels, and closures applied when needed, or was noop used correctly when no action was required?"}]'
           GH_AW_EVALS_MODEL: "small"
           GH_AW_EVALS_PHASE: parse
+          GITHUB_RUN_ID: ${{ github.run_id }}
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/weekly-blog-post-writer.lock.yml b/.github/workflows/weekly-blog-post-writer.lock.yml
index e4616091ae7..77ec897fe2b 100644
--- a/.github/workflows/weekly-blog-post-writer.lock.yml
+++ b/.github/workflows/weekly-blog-post-writer.lock.yml
@@ -1974,6 +1974,7 @@ jobs:
           GH_AW_EVALS_QUESTIONS: '[{"id":"draft-prepared","question":"Did the workflow analyze recent releases and merged pull requests and prepare a weekly blog post draft?"},{"id":"pr-created-or-explained","question":"Was a blog post pull request created when a draft was ready, or did the agent clearly explain why no pull request was needed?"}]'
           GH_AW_EVALS_MODEL: "small"
           GH_AW_EVALS_PHASE: parse
+          GITHUB_RUN_ID: ${{ github.run_id }}
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');

From 4c729426759011578adad1346492b40f1d197ca9 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 15 Jul 2026 18:27:33 +0000
Subject: [PATCH 2/3] feat: add experiments.jsonl with action workflow run_id
 to experiment JSONL entries

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>
---
 .../agent-performance-analyzer.lock.yml       |  1 +
 .../workflows/agent-persona-explorer.lock.yml |  1 +
 .../workflows/architecture-guardian.lock.yml  |  1 +
 .github/workflows/audit-workflows.lock.yml    |  1 +
 .../aw-failure-investigator.lock.yml          |  1 +
 .github/workflows/blog-auditor.lock.yml       |  1 +
 .../breaking-change-checker.lock.yml          |  1 +
 .github/workflows/ci-coach.lock.yml           |  1 +
 .../workflows/copilot-agent-analysis.lock.yml |  1 +
 .../daily-agentrx-trace-optimizer.lock.yml    |  1 +
 .../daily-architecture-diagram.lock.yml       |  1 +
 ...strostylelite-markdown-spellcheck.lock.yml |  1 +
 .../daily-cache-strategy-analyzer.lock.yml    |  1 +
 .../daily-caveman-optimizer.lock.yml          |  1 +
 .github/workflows/daily-code-metrics.lock.yml |  1 +
 .../daily-community-attribution.lock.yml      |  1 +
 .../workflows/daily-compiler-quality.lock.yml |  1 +
 .github/workflows/daily-doc-healer.lock.yml   |  1 +
 .github/workflows/daily-doc-updater.lock.yml  |  1 +
 .github/workflows/daily-fact.lock.yml         |  1 +
 .../workflows/daily-issues-report.lock.yml    |  1 +
 .github/workflows/daily-news.lock.yml         |  1 +
 .../daily-safe-output-optimizer.lock.yml      |  1 +
 .../daily-security-red-team.lock.yml          |  1 +
 .github/workflows/daily-semgrep-scan.lock.yml |  1 +
 .../dataflow-pr-discussion-dataset.lock.yml   |  1 +
 .github/workflows/deep-report.lock.yml        |  1 +
 .../workflows/dependabot-go-checker.lock.yml  |  1 +
 .github/workflows/gpclean.lock.yml            |  1 +
 .github/workflows/issue-arborist.lock.yml     |  1 +
 .github/workflows/plan.lock.yml               |  1 +
 .github/workflows/smoke-antigravity.lock.yml  |  1 +
 .../smoke-copilot-aoai-apikey.lock.yml        |  1 +
 .../smoke-copilot-aoai-entra.lock.yml         |  1 +
 .github/workflows/smoke-copilot.lock.yml      |  1 +
 .github/workflows/smoke-gemini.lock.yml       |  1 +
 .github/workflows/smoke-project.lock.yml      |  1 +
 .github/workflows/smoke-temporary-id.lock.yml |  1 +
 .../workflows/test-quality-sentinel.lock.yml  |  1 +
 .github/workflows/typist.lock.yml             |  1 +
 .../weekly-blog-post-writer.lock.yml          |  1 +
 .../js/load_experiment_state_from_repo.cjs    | 12 +++
 actions/setup/js/pick_experiment.cjs          | 27 +++++-
 actions/setup/js/pick_experiment.test.cjs     | 89 ++++++++++++++++++-
 .../experimental/experiments-specification.md | 12 ++-
 pkg/constants/job_constants.go                |  5 ++
 pkg/workflow/compiler_experiments.go          |  1 +
 47 files changed, 184 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/agent-performance-analyzer.lock.yml b/.github/workflows/agent-performance-analyzer.lock.yml
index dda1591df61..d9e6ccd846c 100644
--- a/.github/workflows/agent-performance-analyzer.lock.yml
+++ b/.github/workflows/agent-performance-analyzer.lock.yml
@@ -1802,6 +1802,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/agentperformanceanalyzer
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/agent-persona-explorer.lock.yml b/.github/workflows/agent-persona-explorer.lock.yml
index cfa1aa18745..8cecdd6f6e8 100644
--- a/.github/workflows/agent-persona-explorer.lock.yml
+++ b/.github/workflows/agent-persona-explorer.lock.yml
@@ -1710,6 +1710,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/agentpersonaexplorer
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/architecture-guardian.lock.yml b/.github/workflows/architecture-guardian.lock.yml
index 14bf25b1f9a..0550dade62a 100644
--- a/.github/workflows/architecture-guardian.lock.yml
+++ b/.github/workflows/architecture-guardian.lock.yml
@@ -2023,6 +2023,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/architectureguardian
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/audit-workflows.lock.yml b/.github/workflows/audit-workflows.lock.yml
index d7752ead297..5deb1661521 100644
--- a/.github/workflows/audit-workflows.lock.yml
+++ b/.github/workflows/audit-workflows.lock.yml
@@ -1907,6 +1907,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/auditworkflows
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/aw-failure-investigator.lock.yml b/.github/workflows/aw-failure-investigator.lock.yml
index 2c6ed265e0e..2dd2c110f98 100644
--- a/.github/workflows/aw-failure-investigator.lock.yml
+++ b/.github/workflows/aw-failure-investigator.lock.yml
@@ -1852,6 +1852,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/awfailureinvestigator
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/blog-auditor.lock.yml b/.github/workflows/blog-auditor.lock.yml
index 73044875ffd..8e04d3dfbca 100644
--- a/.github/workflows/blog-auditor.lock.yml
+++ b/.github/workflows/blog-auditor.lock.yml
@@ -2029,6 +2029,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/blogauditor
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/breaking-change-checker.lock.yml b/.github/workflows/breaking-change-checker.lock.yml
index 932924895d6..92d6ebccf9c 100644
--- a/.github/workflows/breaking-change-checker.lock.yml
+++ b/.github/workflows/breaking-change-checker.lock.yml
@@ -2020,6 +2020,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/breakingchangechecker
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/ci-coach.lock.yml b/.github/workflows/ci-coach.lock.yml
index d3ab17ed7bd..4c177e598ba 100644
--- a/.github/workflows/ci-coach.lock.yml
+++ b/.github/workflows/ci-coach.lock.yml
@@ -2015,6 +2015,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/cicoach
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/copilot-agent-analysis.lock.yml b/.github/workflows/copilot-agent-analysis.lock.yml
index 2b8440d647b..d8e1a856911 100644
--- a/.github/workflows/copilot-agent-analysis.lock.yml
+++ b/.github/workflows/copilot-agent-analysis.lock.yml
@@ -1778,6 +1778,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/copilotagentanalysis
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-agentrx-trace-optimizer.lock.yml b/.github/workflows/daily-agentrx-trace-optimizer.lock.yml
index a96c5b750c1..4739eec31f1 100644
--- a/.github/workflows/daily-agentrx-trace-optimizer.lock.yml
+++ b/.github/workflows/daily-agentrx-trace-optimizer.lock.yml
@@ -1796,6 +1796,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailyagentrxtraceoptimizer
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-architecture-diagram.lock.yml b/.github/workflows/daily-architecture-diagram.lock.yml
index 2aa54fe4320..21f255a1cc6 100644
--- a/.github/workflows/daily-architecture-diagram.lock.yml
+++ b/.github/workflows/daily-architecture-diagram.lock.yml
@@ -1743,6 +1743,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailyarchitecturediagram
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-astrostylelite-markdown-spellcheck.lock.yml b/.github/workflows/daily-astrostylelite-markdown-spellcheck.lock.yml
index 196b35e0380..50c0468cc30 100644
--- a/.github/workflows/daily-astrostylelite-markdown-spellcheck.lock.yml
+++ b/.github/workflows/daily-astrostylelite-markdown-spellcheck.lock.yml
@@ -1690,6 +1690,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailyastrostylelitemarkdownspellcheck
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-cache-strategy-analyzer.lock.yml b/.github/workflows/daily-cache-strategy-analyzer.lock.yml
index 011b3ed3198..1e970e22e1d 100644
--- a/.github/workflows/daily-cache-strategy-analyzer.lock.yml
+++ b/.github/workflows/daily-cache-strategy-analyzer.lock.yml
@@ -1852,6 +1852,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailycachestrategyanalyzer
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-caveman-optimizer.lock.yml b/.github/workflows/daily-caveman-optimizer.lock.yml
index f5979c50fc6..8c9689a690f 100644
--- a/.github/workflows/daily-caveman-optimizer.lock.yml
+++ b/.github/workflows/daily-caveman-optimizer.lock.yml
@@ -1737,6 +1737,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailycavemanoptimizer
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-code-metrics.lock.yml b/.github/workflows/daily-code-metrics.lock.yml
index 4c3d992f34f..ec5cb13b57b 100644
--- a/.github/workflows/daily-code-metrics.lock.yml
+++ b/.github/workflows/daily-code-metrics.lock.yml
@@ -1827,6 +1827,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailycodemetrics
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-community-attribution.lock.yml b/.github/workflows/daily-community-attribution.lock.yml
index 5159c0b2884..e9bb1a11ac1 100644
--- a/.github/workflows/daily-community-attribution.lock.yml
+++ b/.github/workflows/daily-community-attribution.lock.yml
@@ -1764,6 +1764,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailycommunityattribution
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-compiler-quality.lock.yml b/.github/workflows/daily-compiler-quality.lock.yml
index f6a13feb462..c149e42dd41 100644
--- a/.github/workflows/daily-compiler-quality.lock.yml
+++ b/.github/workflows/daily-compiler-quality.lock.yml
@@ -1740,6 +1740,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailycompilerquality
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-doc-healer.lock.yml b/.github/workflows/daily-doc-healer.lock.yml
index c7ea55cde8c..a4e41659175 100644
--- a/.github/workflows/daily-doc-healer.lock.yml
+++ b/.github/workflows/daily-doc-healer.lock.yml
@@ -2142,6 +2142,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailydochealer
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-doc-updater.lock.yml b/.github/workflows/daily-doc-updater.lock.yml
index 4f178cfc9c2..bc33660e9a4 100644
--- a/.github/workflows/daily-doc-updater.lock.yml
+++ b/.github/workflows/daily-doc-updater.lock.yml
@@ -1653,6 +1653,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailydocupdater
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-fact.lock.yml b/.github/workflows/daily-fact.lock.yml
index 88a7c918235..c3680a22ab8 100644
--- a/.github/workflows/daily-fact.lock.yml
+++ b/.github/workflows/daily-fact.lock.yml
@@ -1864,6 +1864,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailyfact
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-issues-report.lock.yml b/.github/workflows/daily-issues-report.lock.yml
index 4218bec6d89..7e7fecf2596 100644
--- a/.github/workflows/daily-issues-report.lock.yml
+++ b/.github/workflows/daily-issues-report.lock.yml
@@ -2208,6 +2208,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailyissuesreport
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-news.lock.yml b/.github/workflows/daily-news.lock.yml
index 8783ab81823..916db7be071 100644
--- a/.github/workflows/daily-news.lock.yml
+++ b/.github/workflows/daily-news.lock.yml
@@ -2137,6 +2137,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailynews
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-safe-output-optimizer.lock.yml b/.github/workflows/daily-safe-output-optimizer.lock.yml
index 130470620e9..27e8d9dfd3b 100644
--- a/.github/workflows/daily-safe-output-optimizer.lock.yml
+++ b/.github/workflows/daily-safe-output-optimizer.lock.yml
@@ -1971,6 +1971,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailysafeoutputoptimizer
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-security-red-team.lock.yml b/.github/workflows/daily-security-red-team.lock.yml
index 12751a627b9..0b98067fed8 100644
--- a/.github/workflows/daily-security-red-team.lock.yml
+++ b/.github/workflows/daily-security-red-team.lock.yml
@@ -1804,6 +1804,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailysecurityredteam
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/daily-semgrep-scan.lock.yml b/.github/workflows/daily-semgrep-scan.lock.yml
index bf6e209650b..fa66806c2d1 100644
--- a/.github/workflows/daily-semgrep-scan.lock.yml
+++ b/.github/workflows/daily-semgrep-scan.lock.yml
@@ -1676,6 +1676,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dailysemgrepscan
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/dataflow-pr-discussion-dataset.lock.yml b/.github/workflows/dataflow-pr-discussion-dataset.lock.yml
index 123e8f0b74c..434ad606fae 100644
--- a/.github/workflows/dataflow-pr-discussion-dataset.lock.yml
+++ b/.github/workflows/dataflow-pr-discussion-dataset.lock.yml
@@ -2007,6 +2007,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dataflowprdiscussiondataset
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/deep-report.lock.yml b/.github/workflows/deep-report.lock.yml
index 4da531218cb..618d3aaff17 100644
--- a/.github/workflows/deep-report.lock.yml
+++ b/.github/workflows/deep-report.lock.yml
@@ -2180,6 +2180,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/deepreport
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/dependabot-go-checker.lock.yml b/.github/workflows/dependabot-go-checker.lock.yml
index 0fb87fe079e..ad588b628b1 100644
--- a/.github/workflows/dependabot-go-checker.lock.yml
+++ b/.github/workflows/dependabot-go-checker.lock.yml
@@ -1665,6 +1665,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/dependabotgochecker
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/gpclean.lock.yml b/.github/workflows/gpclean.lock.yml
index 99fe6ec6ee9..6bd7775efd3 100644
--- a/.github/workflows/gpclean.lock.yml
+++ b/.github/workflows/gpclean.lock.yml
@@ -1701,6 +1701,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/gpclean
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/issue-arborist.lock.yml b/.github/workflows/issue-arborist.lock.yml
index 9c94a7d71d6..35fca307fcc 100644
--- a/.github/workflows/issue-arborist.lock.yml
+++ b/.github/workflows/issue-arborist.lock.yml
@@ -1848,6 +1848,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/issuearborist
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/plan.lock.yml b/.github/workflows/plan.lock.yml
index f4f285d33b0..05b87940b84 100644
--- a/.github/workflows/plan.lock.yml
+++ b/.github/workflows/plan.lock.yml
@@ -2133,6 +2133,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/plan
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/smoke-antigravity.lock.yml b/.github/workflows/smoke-antigravity.lock.yml
index 3bf315533c1..5e83e69c28a 100644
--- a/.github/workflows/smoke-antigravity.lock.yml
+++ b/.github/workflows/smoke-antigravity.lock.yml
@@ -1844,6 +1844,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/smokeantigravity
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/smoke-copilot-aoai-apikey.lock.yml b/.github/workflows/smoke-copilot-aoai-apikey.lock.yml
index bc8593ed4df..0b7280fae9f 100644
--- a/.github/workflows/smoke-copilot-aoai-apikey.lock.yml
+++ b/.github/workflows/smoke-copilot-aoai-apikey.lock.yml
@@ -2911,6 +2911,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/smokecopilotaoaiapikey
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/smoke-copilot-aoai-entra.lock.yml b/.github/workflows/smoke-copilot-aoai-entra.lock.yml
index b355917427d..5bf5b5402e1 100644
--- a/.github/workflows/smoke-copilot-aoai-entra.lock.yml
+++ b/.github/workflows/smoke-copilot-aoai-entra.lock.yml
@@ -2921,6 +2921,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/smokecopilotaoaientra
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/smoke-copilot.lock.yml b/.github/workflows/smoke-copilot.lock.yml
index 325ccb8defa..564f430a0a5 100644
--- a/.github/workflows/smoke-copilot.lock.yml
+++ b/.github/workflows/smoke-copilot.lock.yml
@@ -3217,6 +3217,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/smokecopilot
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/smoke-gemini.lock.yml b/.github/workflows/smoke-gemini.lock.yml
index 3fb5a53fbd5..29ffbbb7910 100644
--- a/.github/workflows/smoke-gemini.lock.yml
+++ b/.github/workflows/smoke-gemini.lock.yml
@@ -1919,6 +1919,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/smokegemini
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/smoke-project.lock.yml b/.github/workflows/smoke-project.lock.yml
index 8752ff2464e..bffbf8e393a 100644
--- a/.github/workflows/smoke-project.lock.yml
+++ b/.github/workflows/smoke-project.lock.yml
@@ -2050,6 +2050,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/smokeproject
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/smoke-temporary-id.lock.yml b/.github/workflows/smoke-temporary-id.lock.yml
index a88043d0624..94b78bc09f8 100644
--- a/.github/workflows/smoke-temporary-id.lock.yml
+++ b/.github/workflows/smoke-temporary-id.lock.yml
@@ -1899,6 +1899,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/smoketemporaryid
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/test-quality-sentinel.lock.yml b/.github/workflows/test-quality-sentinel.lock.yml
index b2a052140e5..3ec7f76f4f3 100644
--- a/.github/workflows/test-quality-sentinel.lock.yml
+++ b/.github/workflows/test-quality-sentinel.lock.yml
@@ -1795,6 +1795,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/testqualitysentinel
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/typist.lock.yml b/.github/workflows/typist.lock.yml
index b1aca189fc3..26bf1f7a365 100644
--- a/.github/workflows/typist.lock.yml
+++ b/.github/workflows/typist.lock.yml
@@ -1727,6 +1727,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/typist
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/.github/workflows/weekly-blog-post-writer.lock.yml b/.github/workflows/weekly-blog-post-writer.lock.yml
index 77ec897fe2b..e8f717b2c70 100644
--- a/.github/workflows/weekly-blog-post-writer.lock.yml
+++ b/.github/workflows/weekly-blog-post-writer.lock.yml
@@ -2146,6 +2146,7 @@ jobs:
           GITHUB_SERVER_URL: ${{ github.server_url }}
           GH_AW_EXPERIMENT_STATE_DIR: /tmp/gh-aw/experiments
           GH_AW_EXPERIMENT_BRANCH: experiments/weeklyblogpostwriter
+          GH_AW_STATE_FILES: state.json,assignments.json,experiments.jsonl
         with:
           script: |
             const { setupGlobals } = require('${{ runner.temp }}/gh-aw/actions/setup_globals.cjs');
diff --git a/actions/setup/js/load_experiment_state_from_repo.cjs b/actions/setup/js/load_experiment_state_from_repo.cjs
index fbb78bbafbe..a66e2855ec6 100644
--- a/actions/setup/js/load_experiment_state_from_repo.cjs
+++ b/actions/setup/js/load_experiment_state_from_repo.cjs
@@ -162,6 +162,18 @@ async function main() {
 
   fs.writeFileSync(stateFile, content, "utf8");
   core.info(`Experiment state written to ${stateFile}`);
+
+  // Also fetch experiments.jsonl if present so pick_experiment.cjs can append to it.
+  let experimentsJsonlContent = null;
+  try {
+    experimentsJsonlContent = await fetchFileFromBranch(octokit, owner, repo, branch, "experiments.jsonl");
+  } catch (/** @type {any} */ err) {
+    core.warning(`Failed to fetch experiments.jsonl from branch "${branch}": ${getErrorMessage(err)} – will start fresh`);
+  }
+  if (experimentsJsonlContent !== null) {
+    fs.writeFileSync(path.join(stateDir, "experiments.jsonl"), experimentsJsonlContent, "utf8");
+    core.info(`Experiment run records written to ${path.join(stateDir, "experiments.jsonl")}`);
+  }
 }
 
 module.exports = { main, fetchFileFromBranch, validateInputs };
diff --git a/actions/setup/js/pick_experiment.cjs b/actions/setup/js/pick_experiment.cjs
index f0613a0e6f4..12979631315 100644
--- a/actions/setup/js/pick_experiment.cjs
+++ b/actions/setup/js/pick_experiment.cjs
@@ -436,7 +436,8 @@ async function main() {
     if (!state.runs) {
       state.runs = [];
     }
-    state.runs.push({ run_id: runId, timestamp, assignments: { ...assignments } });
+    const runRecord = { run_id: runId, timestamp, assignments: { ...assignments } };
+    state.runs.push(runRecord);
     // Prune run history to avoid state.json growing without bound over many runs.
     if (state.runs.length > MAX_RUN_HISTORY) {
       state.runs = state.runs.slice(-MAX_RUN_HISTORY);
@@ -451,10 +452,34 @@ async function main() {
   // OTLP telemetry can read which variant was selected without recomputing it.
   // Only written when at least one experiment was successfully assigned.
   if (Object.keys(assignments).length > 0) {
+    const runId = process.env.GITHUB_RUN_ID || "";
+    const timestamp = new Date().toISOString();
+
     const assignmentsFile = path.join(stateDir, "assignments.json");
     fs.writeFileSync(assignmentsFile, JSON.stringify(assignments, null, 2) + "\n", "utf8");
     core.info(`Experiment assignments written to ${assignmentsFile}`);
 
+    // Append a structured JSONL record so the action workflow run id is always
+    // present in durable experiment logs. Each line is a self-contained JSON
+    // object that can be correlated with GitHub Actions run metadata.
+    const experimentsJsonlFile = path.join(stateDir, "experiments.jsonl");
+    let jsonlEntries = [];
+    try {
+      const existing = fs.readFileSync(experimentsJsonlFile, "utf8");
+      jsonlEntries = existing
+        .split("\n")
+        .filter(line => line.trim())
+        .map(line => JSON.parse(line));
+    } catch {
+      // File does not exist or is unreadable – start fresh.
+    }
+    jsonlEntries.push({ run_id: runId, timestamp, assignments: { ...assignments } });
+    if (jsonlEntries.length > MAX_RUN_HISTORY) {
+      jsonlEntries = jsonlEntries.slice(-MAX_RUN_HISTORY);
+    }
+    fs.writeFileSync(experimentsJsonlFile, jsonlEntries.map(r => JSON.stringify(r)).join("\n") + "\n", "utf8");
+    core.info(`Experiment run records written to ${experimentsJsonlFile}`);
+
     // Emit OTEL resource attributes so every span in this run carries the
     // experiment assignments for filtering in Honeycomb/Grafana.
     const otelAttrs = Object.entries(assignments)
diff --git a/actions/setup/js/pick_experiment.test.cjs b/actions/setup/js/pick_experiment.test.cjs
index b6ffad96e6b..3e22d35c75f 100644
--- a/actions/setup/js/pick_experiment.test.cjs
+++ b/actions/setup/js/pick_experiment.test.cjs
@@ -759,7 +759,94 @@ describe("pick_experiment", () => {
     });
   });
 
-  // ── OTEL resource attributes ──────────────────────────────────────────────
+  // ── experiments.jsonl ────────────────────────────────────────────────────
+
+  describe("experiments.jsonl", () => {
+    it("writes experiments.jsonl with run_id when experiments are assigned", async () => {
+      const stateFile = path.join(tmpDir, "state.json");
+      fs.writeFileSync(stateFile, JSON.stringify({ counts: { feat: { X: 1, Y: 0 } }, runs: [] }), "utf8");
+      process.env.GH_AW_EXPERIMENT_SPEC = JSON.stringify({ feat: ["X", "Y"] });
+      process.env.GH_AW_EXPERIMENT_STATE_FILE = stateFile;
+      process.env.GH_AW_EXPERIMENT_STATE_DIR = tmpDir;
+      process.env.GITHUB_RUN_ID = "99";
+
+      await main();
+
+      const jsonlFile = path.join(tmpDir, "experiments.jsonl");
+      expect(fs.existsSync(jsonlFile)).toBe(true);
+      const lines = fs
+        .readFileSync(jsonlFile, "utf8")
+        .split("\n")
+        .filter(l => l.trim());
+      expect(lines).toHaveLength(1);
+      const entry = JSON.parse(lines[0]);
+      expect(entry.run_id).toBe("99");
+      expect(entry.assignments).toEqual({ feat: "Y" });
+      expect(typeof entry.timestamp).toBe("string");
+    });
+
+    it("does not write experiments.jsonl when no experiments are assigned", async () => {
+      process.env.GH_AW_EXPERIMENT_SPEC = "{}";
+      process.env.GH_AW_EXPERIMENT_STATE_FILE = path.join(tmpDir, "state.json");
+      process.env.GH_AW_EXPERIMENT_STATE_DIR = tmpDir;
+
+      await main();
+
+      const jsonlFile = path.join(tmpDir, "experiments.jsonl");
+      expect(fs.existsSync(jsonlFile)).toBe(false);
+    });
+
+    it("appends entries to an existing experiments.jsonl across successive runs", async () => {
+      const stateFile = path.join(tmpDir, "state.json");
+      process.env.GH_AW_EXPERIMENT_SPEC = JSON.stringify({ feat: ["X", "Y"] });
+      process.env.GH_AW_EXPERIMENT_STATE_FILE = stateFile;
+      process.env.GH_AW_EXPERIMENT_STATE_DIR = tmpDir;
+      process.env.GITHUB_RUN_ID = "10";
+
+      await main();
+      vi.clearAllMocks();
+
+      process.env.GITHUB_RUN_ID = "20";
+      await main();
+
+      const jsonlFile = path.join(tmpDir, "experiments.jsonl");
+      const lines = fs
+        .readFileSync(jsonlFile, "utf8")
+        .split("\n")
+        .filter(l => l.trim());
+      expect(lines).toHaveLength(2);
+      expect(JSON.parse(lines[0]).run_id).toBe("10");
+      expect(JSON.parse(lines[1]).run_id).toBe("20");
+    });
+
+    it("prunes experiments.jsonl to last MAX_RUN_HISTORY entries", async () => {
+      const stateFile = path.join(tmpDir, "state.json");
+      // Pre-populate experiments.jsonl with 512 entries.
+      const existingEntries = Array.from({ length: 512 }, (_, i) => ({
+        run_id: String(i),
+        timestamp: "2026-01-01T00:00:00.000Z",
+        assignments: { feat: "X" },
+      }));
+      const jsonlFile = path.join(tmpDir, "experiments.jsonl");
+      fs.writeFileSync(jsonlFile, existingEntries.map(r => JSON.stringify(r)).join("\n") + "\n", "utf8");
+      // Also set up state so the pick is deterministic.
+      fs.writeFileSync(stateFile, JSON.stringify({ counts: { feat: { X: 512, Y: 0 } }, runs: [] }), "utf8");
+      process.env.GH_AW_EXPERIMENT_SPEC = JSON.stringify({ feat: ["X", "Y"] });
+      process.env.GH_AW_EXPERIMENT_STATE_FILE = stateFile;
+      process.env.GH_AW_EXPERIMENT_STATE_DIR = tmpDir;
+      process.env.GITHUB_RUN_ID = "9999";
+
+      await main();
+
+      const lines = fs
+        .readFileSync(jsonlFile, "utf8")
+        .split("\n")
+        .filter(l => l.trim());
+      // 512 existing + 1 new = 513, pruned to last 512.
+      expect(lines).toHaveLength(512);
+      expect(JSON.parse(lines[lines.length - 1]).run_id).toBe("9999");
+    });
+  });
 
   describe("OTEL resource attributes", () => {
     it("exports OTEL_RESOURCE_ATTRIBUTES with experiment assignments", async () => {
diff --git a/docs/src/content/docs/experimental/experiments-specification.md b/docs/src/content/docs/experimental/experiments-specification.md
index 8958303e806..fdb1d5d0613 100644
--- a/docs/src/content/docs/experimental/experiments-specification.md
+++ b/docs/src/content/docs/experimental/experiments-specification.md
@@ -177,6 +177,7 @@ Notes, rationale blocks, and appendices are **informative** and carry no conform
 | **Activation job** | The `activation` GitHub Actions job generated by the compiler that picks variants and exposes them to downstream jobs. |
 | **Experiment artifact** | A GitHub Actions artifact named `{sanitizedID}-experiment` uploaded by the activation job and containing `state.json` and `assignments.json`. |
 | **assignments.json** | A file in the experiment artifact containing only the current run's variant assignments as a flat JSON object. |
+| **experiments.jsonl** | A growing JSONL file committed to the experiments git branch alongside `state.json`. Each line is a JSON object with `run_id`, `timestamp`, and `assignments` for one workflow run, enabling correlation with GitHub Actions run metadata. |
 
 ---
 
@@ -429,6 +430,8 @@ date window), implementations **MUST NOT** append a run record or rewrite `state
 **R-STORE-REPO-001**: When `storage: repo` is active, the activation job **MUST** load
 experiment state by fetching `state.json` from the git branch named
 `experiments/{sanitizedWorkflowID}` via the GitHub REST API (GET /repos/{owner}/{repo}/contents/{path}).
+The activation job **MUST** also attempt to fetch `experiments.jsonl` from the same branch and,
+if present, write it to the local state directory so that `pick_experiment.cjs` can append to it.
 
 **R-STORE-REPO-002**: A 404 response (branch or file does not exist) **MUST** be treated as an
 empty initial state; the activation job **MUST NOT** fail.
@@ -436,11 +439,18 @@ empty initial state; the activation job **MUST NOT** fail.
 **R-STORE-REPO-003**: After the activation job completes, a dedicated `push_experiments_state`
 job **MUST** be generated. This job **MUST**:
 - Download the experiment artifact from the current run.
-- Commit the updated `state.json` and `assignments.json` to the experiments git branch.
+- Commit the updated `state.json`, `assignments.json`, and `experiments.jsonl` to the experiments git branch.
 - Declare `permissions: contents: write`.
 - Be listed as a dependency of the conclusion job to ensure state is persisted before the
   workflow terminates.
 
+**R-STORE-REPO-006**: When at least one experiment is assigned, `pick_experiment.cjs` **MUST**
+append a JSONL record to `experiments.jsonl` containing `run_id` (from `GITHUB_RUN_ID`),
+`timestamp`, and `assignments`. The file **MUST** be pruned to at most 512 entries (keeping the
+most recent). This file provides a durable, run-correlated log that is separate from
+`assignments.json` (which contains only current-run data) and `state.json` (which embeds run
+history but is primarily an invocation-counter store).
+
 **R-STORE-REPO-004**: The commit **SHOULD** be made via the GitHub GraphQL
 `createCommitOnBranch` mutation (producing a verified, signed commit). A plain `git push`
 **MAY** be used as a fallback when the GraphQL mutation is unavailable.
diff --git a/pkg/constants/job_constants.go b/pkg/constants/job_constants.go
index bce1c542f1c..9b3c8515727 100644
--- a/pkg/constants/job_constants.go
+++ b/pkg/constants/job_constants.go
@@ -108,6 +108,11 @@ const EvalsResultFilename = "evals.jsonl"
 // EvalsBranchPrefix is the branch prefix used for durable eval result storage.
 const EvalsBranchPrefix = "evals"
 
+// ExperimentsRunsFilename is the filename of the experiment run records JSONL file.
+// Each line is a JSON object with run_id, timestamp, and assignments for one workflow run.
+// Written by pick_experiment.cjs alongside state.json and assignments.json.
+const ExperimentsRunsFilename = "experiments.jsonl"
+
 // LegacyDetectionArtifactName is the old artifact name used before the rename.
 // Kept for backward compatibility when downloading artifacts from older workflow runs.
 const LegacyDetectionArtifactName = "threat-detection.log"
diff --git a/pkg/workflow/compiler_experiments.go b/pkg/workflow/compiler_experiments.go
index 2ee6acea5b0..5f2a80a2075 100644
--- a/pkg/workflow/compiler_experiments.go
+++ b/pkg/workflow/compiler_experiments.go
@@ -703,6 +703,7 @@ func (c *Compiler) buildPushExperimentsStateJob(data *WorkflowData) (*Job, error
 	pushStep.WriteString("          GITHUB_SERVER_URL: ${{ github.server_url }}\n")
 	fmt.Fprintf(&pushStep, "          GH_AW_EXPERIMENT_STATE_DIR: %s\n", experimentsCacheDir)
 	fmt.Fprintf(&pushStep, "          GH_AW_EXPERIMENT_BRANCH: %s\n", branchName)
+	fmt.Fprintf(&pushStep, "          GH_AW_STATE_FILES: state.json,assignments.json,%s\n", constants.ExperimentsRunsFilename)
 	pushStep.WriteString("        with:\n")
 	pushStep.WriteString("          script: |\n")
 	pushStep.WriteString("            const { setupGlobals } = require('" + SetupActionDestination + "/setup_globals.cjs');\n")

From a2263a5d7035aab0a3fcea26e388a509cd21c939 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Wed, 15 Jul 2026 18:32:52 +0000
Subject: [PATCH 3/3] refactor: consolidate runId/timestamp in
 pick_experiment.cjs; clarify load warning

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>
---
 .../js/load_experiment_state_from_repo.cjs    |  2 +-
 actions/setup/js/pick_experiment.cjs          | 28 +++++++++----------
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/actions/setup/js/load_experiment_state_from_repo.cjs b/actions/setup/js/load_experiment_state_from_repo.cjs
index a66e2855ec6..f0d7ff0dc53 100644
--- a/actions/setup/js/load_experiment_state_from_repo.cjs
+++ b/actions/setup/js/load_experiment_state_from_repo.cjs
@@ -168,7 +168,7 @@ async function main() {
   try {
     experimentsJsonlContent = await fetchFileFromBranch(octokit, owner, repo, branch, "experiments.jsonl");
   } catch (/** @type {any} */ err) {
-    core.warning(`Failed to fetch experiments.jsonl from branch "${branch}": ${getErrorMessage(err)} – will start fresh`);
+    core.warning(`Failed to fetch experiments.jsonl from branch "${branch}": ${getErrorMessage(err)} – will start with empty run history`);
   }
   if (experimentsJsonlContent !== null) {
     fs.writeFileSync(path.join(stateDir, "experiments.jsonl"), experimentsJsonlContent, "utf8");
diff --git a/actions/setup/js/pick_experiment.cjs b/actions/setup/js/pick_experiment.cjs
index 12979631315..164a532a1b7 100644
--- a/actions/setup/js/pick_experiment.cjs
+++ b/actions/setup/js/pick_experiment.cjs
@@ -430,31 +430,27 @@ async function main() {
   core.info(`Experiment assignments (JSON): ${experimentsJSON}`);
 
   if (Object.keys(assignments).length > 0) {
-    // Append a per-run record to state.runs so each assignment is traceable.
+    // Capture run metadata once and share it across state.runs, experiments.jsonl, and assignments.
     const runId = process.env.GITHUB_RUN_ID || "";
     const timestamp = new Date().toISOString();
+    const runRecord = { run_id: runId, timestamp, assignments: { ...assignments } };
+
+    // Append a per-run record to state.runs so each assignment is traceable.
     if (!state.runs) {
       state.runs = [];
     }
-    const runRecord = { run_id: runId, timestamp, assignments: { ...assignments } };
     state.runs.push(runRecord);
     // Prune run history to avoid state.json growing without bound over many runs.
     if (state.runs.length > MAX_RUN_HISTORY) {
       state.runs = state.runs.slice(-MAX_RUN_HISTORY);
     }
-  }
-
-  // Persist updated counts and run history.
-  saveState(stateFile, state);
-  core.info(`Experiment state written to ${stateFile}`);
 
-  // Persist current-run assignments to a separate file so downstream jobs and
-  // OTLP telemetry can read which variant was selected without recomputing it.
-  // Only written when at least one experiment was successfully assigned.
-  if (Object.keys(assignments).length > 0) {
-    const runId = process.env.GITHUB_RUN_ID || "";
-    const timestamp = new Date().toISOString();
+    // Persist updated counts and run history.
+    saveState(stateFile, state);
+    core.info(`Experiment state written to ${stateFile}`);
 
+    // Persist current-run assignments to a separate file so downstream jobs and
+    // OTLP telemetry can read which variant was selected without recomputing it.
     const assignmentsFile = path.join(stateDir, "assignments.json");
     fs.writeFileSync(assignmentsFile, JSON.stringify(assignments, null, 2) + "\n", "utf8");
     core.info(`Experiment assignments written to ${assignmentsFile}`);
@@ -473,7 +469,7 @@ async function main() {
     } catch {
       // File does not exist or is unreadable – start fresh.
     }
-    jsonlEntries.push({ run_id: runId, timestamp, assignments: { ...assignments } });
+    jsonlEntries.push(runRecord);
     if (jsonlEntries.length > MAX_RUN_HISTORY) {
       jsonlEntries = jsonlEntries.slice(-MAX_RUN_HISTORY);
     }
@@ -488,6 +484,10 @@ async function main() {
     const existingAttrs = process.env.OTEL_RESOURCE_ATTRIBUTES || "";
     core.exportVariable("OTEL_RESOURCE_ATTRIBUTES", existingAttrs ? `${existingAttrs},${otelAttrs}` : otelAttrs);
     core.info(`OTEL resource attributes set: ${otelAttrs}`);
+  } else {
+    // No assignments – still persist updated counts.
+    saveState(stateFile, state);
+    core.info(`Experiment state written to ${stateFile}`);
   }
 
   // Write step summary.