mirror of
https://github.com/abhigyanpatwari/GitNexus.git
synced 2026-09-16 23:43:12 +00:00
The upload step needs a path that does not depend on the sweep step
surviving. It did not need shared state to get one: `runner.temp` is
available in a step, only not in a job-level `env:`, so each of the three
consumers can name `${RUNNER_TEMP}/wfevolve` itself. That deletes the
env var and the step that published it — the previous fix swapped one
threading channel for a sturdier one where no channel was required.
Also from the same review pass:
- `announce`/`keep` drop their default-argument capture of `task["id"]`
and `per_arm`. Late binding only bites a closure invoked after the loop
moves on; these are called synchronously inside `sweep_task_cells`,
which blocks until every wave completes. The trick was guarding against
a race that cannot happen here, while implying to the next reader that
it can.
- `_stub_cell_dependencies` returns the list its teardown appends to
rather than taking it as an out-parameter, dropping the boilerplate
from every call site.
- The workflow's `WORKERS` comment points at the `--workers` help text
instead of restating it, so the rationale has one home.
443 lines
21 KiB
YAML
443 lines
21 KiB
YAML
# GitNexus skill evolution: runs the offline propose → benchmark → gate loop
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# (eval/workflow_bench/evolve.py) on a schedule and, when the deterministic
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# promotion gate passes, opens a human-reviewed PR with the promoted skill
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# overlay. The gate is evidence FOR a PR, never a bypass of one — nothing
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# merges without review.
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#
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# Activation checklist (the scheduled lane is OFF by default).
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# [x] Configure the repository secret GITNEXUS_BENCH_AUTH_TOKEN (an Anthropic
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# API key — benchmark sessions bill real usage; the Claude Code OAuth
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# subscription token does not work here). Scoped to the
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# `gitnexus-evolution` Environment.
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# [x] Configure the RELEASE_APP_ID and RELEASE_APP_PRIVATE_KEY secrets (the
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# App that opens the promotion PR). The Mint-App-Token step hard-fails
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# without them once a promotion is detected. Verify the App installation
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# is scoped to this repo with only Contents: RW + Pull requests: RW.
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# [x] Create the protected Environment `gitnexus-evolution` with a
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# deployment-branch rule restricting it to `main`, and ideally scope the
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# three secrets above to that Environment. workflow_dispatch runs this
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# workflow (and eval/workflow_bench/evolve.py) from the *dispatched ref*,
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# so this server-side rule — not a code-side guard the branch could edit
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# away — is what stops a non-main branch from running with the secrets.
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# [x] Register a self-hosted runner labeled `gitnexus-evolution` (a dedicated
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# EC2 box works well). GitHub-hosted runners hard-cap job execution at 6
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# hours, non-configurable — too short once a benchmark session actually
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# invokes Skill/MCP tools for real. Self-hosted runners cap at 5 days
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# instead. This job only ever runs on schedule/workflow_dispatch, never
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# on fork-PR content, so the usual public-repo self-hosted-runner risk
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# doesn't apply — still keep the box dedicated to this workflow, with
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# outbound-only network access, and prefer on-demand over Spot (a Spot
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# reclaim mid-run loses the same way a 6-hour timeout does). Instance,
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# security group, and IAM setup are documented privately, not in this
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# repo — publishing the exact topology of a real, live AWS account
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# isn't safe to do in a public repo even without literal secrets.
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# Accepted tradeoff: the box is stopped between runs (an EventBridge
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# schedule starts it ~15min before the Saturday cron and stops it 24h
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# later) but is not destroyed/recreated per run, so it isn't fully
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# ephemeral — a compromise between the review-flagged ideal (re-image
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# between runs, bounding how long the injected model API key could
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# matter if the box were ever compromised some other way) and the added
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# complexity of per-job ephemeral provisioning for a job that runs at
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# most weekly. Revisit if run frequency increases or the threat model
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# changes; stopping already bounds the exposure window to the job's own
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# runtime on 1 day out of 7.
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# [x] Run workflow_dispatch once and confirm: containment preflight passes,
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# the benchmark completes inside the job timeout, the results artifact
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# uploads, and a promotion (if any) opens a well-formed PR. Run
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# 29907431284 (2026-07-22) went green end to end in 14h45m and reached a
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# gate decision (`insufficient_evidence`, no promotion).
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# [ ] Set the repository variable GITNEXUS_EVOLUTION_ENABLED=true. This is the
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# only remaining gap: until it is set the scheduled lane skips the job in
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# seconds — while the EventBridge schedule still starts the runner for the
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# day — so the Saturday cron costs instance time and produces nothing.
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# Roll back by setting that variable to false. Note: workflow_dispatch always
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# runs the full benchmark loop regardless of GITNEXUS_EVOLUTION_ENABLED and
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# bills real API usage on GITNEXUS_BENCH_AUTH_TOKEN.
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name: GitNexus skill evolution
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on:
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schedule:
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# Weekly is a deliberate cadence to catch model/harness drift promptly; a
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# no-promotion week only costs one benchmark run (the gate keeps the
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# incumbent unless quality improves). Dial back toward the README's ~90-day
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# re-evaluation guidance if the recurring spend is not worth it.
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- cron: '0 3 * * 6' # weekly, Saturday 03:00 UTC
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workflow_dispatch:
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inputs:
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generations:
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description: 'Propose→bench→gate generations to run'
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required: false
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default: '1'
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type: string
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runs:
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description: 'Runs per arm per task (the gate needs at least 3)'
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required: false
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default: '3'
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type: string
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workers:
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description: 'Benchmark cells of one task to run at once — raise only to match the runner’s vCPUs'
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required: false
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default: '1'
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type: string
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model:
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description: 'Model for the benchmark arms (match the model your skill users run)'
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required: false
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default: 'claude-sonnet-5'
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type: string
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proposer_model:
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description: 'Model for the proposer/diagnosis session — a stronger model is fine (one session per generation)'
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required: false
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default: 'claude-opus-4-8'
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type: string
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include_expensive:
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description: 'Include tasks marked expensive: true'
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required: false
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default: false
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type: boolean
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concurrency:
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group: ${{ github.workflow }}
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cancel-in-progress: false
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permissions: {}
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jobs:
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evolve:
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name: Propose, benchmark, and gate skill candidates
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if: >-
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github.repository == 'abhigyanpatwari/GitNexus' &&
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(
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github.event_name == 'workflow_dispatch' ||
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vars.GITNEXUS_EVOLUTION_ENABLED == 'true'
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)
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runs-on: [self-hosted, linux, x64, gitnexus-evolution]
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# Gate promotion runs on a protected Environment. An admin must attach a
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# deployment-branch rule (main only) and ideally scope the three secrets to
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# it — server-side enforcement a dispatched non-main ref cannot bypass by
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# editing its own workflow copy. See the activation checklist above.
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environment: gitnexus-evolution
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# Three budgets have to nest, longest first, or the evidence is lost:
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# EventBridge instance uptime (24h from ~02:45)
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# > this job timeout (21h)
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# > the benchmark step timeout (19h, set on the step below)
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# A job-level timeout CANCELS the job, so the upload step never runs and a
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# multi-hour generation's evidence dies with it; a step-level timeout only
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# fails that step, and `if: always()` still uploads what the sweep wrote.
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# The instance must outlive the job for the same reason — when the box
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# stops the runner just disappears mid-step. Scheduled runs can start well
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# after the cron (the 2026-08-01 run was queued 65min late), so the job
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# budget has to absorb that delay and still land inside the uptime window.
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timeout-minutes: 1260
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permissions:
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contents: read # The promotion PR uses a short-lived App token minted below.
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actions: read # Read the previous run's evidence artifact to seed the proposer.
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env:
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GENERATIONS: ${{ inputs.generations || '1' }}
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RUNS: ${{ inputs.runs || '3' }}
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# Serial by default — see workflow_bench.runner --workers for why, and
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# raise it only to match the runner's vCPUs.
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WORKERS: ${{ inputs.workers || '1' }}
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MODEL: ${{ inputs.model || 'claude-sonnet-5' }}
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PROPOSER_MODEL: ${{ inputs.proposer_model || 'claude-opus-4-8' }}
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INCLUDE_EXPENSIVE: ${{ inputs.include_expensive && '1' || '' }}
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steps:
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- name: Require the benchmark auth secret
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env:
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HAS_TOKEN: ${{ secrets.GITNEXUS_BENCH_AUTH_TOKEN != '' }}
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run: |
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set -euo pipefail
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if [[ "${HAS_TOKEN}" != 'true' ]]; then
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echo '::error::GITNEXUS_BENCH_AUTH_TOKEN is not configured. The evolution loop runs real benchmark sessions and needs an Anthropic API key (not the Claude Code OAuth token).'
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exit 1
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fi
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- uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
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with:
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persist-credentials: false
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fetch-depth: 0
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- uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
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with:
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node-version: '22.18.0'
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cache: npm
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cache-dependency-path: |
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gitnexus/package-lock.json
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gitnexus-shared/package-lock.json
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- uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
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with:
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version: '0.11.23'
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python-version: '3.13'
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enable-cache: true
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cache-dependency-glob: eval/uv.lock
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- name: Install sandbox runtime and pinned Claude CLI
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run: |
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set -euo pipefail
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sudo apt-get update
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sudo apt-get install --yes --no-install-recommends bubblewrap socat
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apparmor_userns=/proc/sys/kernel/apparmor_restrict_unprivileged_userns
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if [[ -r "${apparmor_userns}" ]] && [[ "$(<"${apparmor_userns}")" == '1' ]]; then
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sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0
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fi
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canary_runtime="${RUNNER_TEMP}/claude-canary"
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install -d -m 0700 "${canary_runtime}"
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install -m 0600 \
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.github/claude-canary-runtime/package.json \
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"${canary_runtime}/package.json"
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install -m 0600 \
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.github/claude-canary-runtime/package-lock.json \
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"${canary_runtime}/package-lock.json"
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npm ci \
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--prefix "${canary_runtime}" \
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--ignore-scripts=false \
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--audit=false \
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--fund=false
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node -e \
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"const p=require(process.argv[1]); if(p.version!=='2.1.214') process.exit(1)" \
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"${canary_runtime}/node_modules/@anthropic-ai/claude-code/package.json"
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test "$("${canary_runtime}/node_modules/@anthropic-ai/claude-code-linux-x64/claude" --version)" = \
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'2.1.214 (Claude Code)'
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- name: Install monorepo root dependencies
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run: |
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set -euo pipefail
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# The benchmark's task bindings sandbox-copy node_modules from the
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# monorepo root as well as gitnexus-shared and gitnexus (see the
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# sandbox_copy entries in tasks.scenarios.yaml). The two steps below
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# install the subpackage trees; the root tree needs its own install
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# or capture_task_dependency_binding aborts at task binding on the
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# missing root node_modules.
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npm ci
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- name: Build pinned shared runtime
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run: |
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set -euo pipefail
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npm ci
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npm run build
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working-directory: gitnexus-shared
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- name: Install and build pinned GitNexus runtime
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run: |
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set -euo pipefail
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npm ci
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npm run build
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working-directory: gitnexus
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- name: Point the benchmark task repo at the checkout
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run: |
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set -euo pipefail
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# tasks.scenarios.yaml addresses the target repo as ~/GitNexus (the
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# developer-local convention). On the runner the repo is the checkout
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# at ${GITHUB_WORKSPACE}; link it so runner_tasks.py can resolve the
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# task `repo` path. The benchmark only clones the repo (copy-on-write)
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# and mounts dependencies read-only, so the checkout is never mutated.
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ln -sfn "${GITHUB_WORKSPACE}" "${HOME}/GitNexus"
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- name: Seed the proposer with the previous run's evidence
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id: seed
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env:
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GH_TOKEN: ${{ github.token }}
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run: |
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set -euo pipefail
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# Without this the weekly lane is memoryless: `--seed-results` is the
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# only way a run sees what already lost (evolve.summarize_gate feeds
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# the prior promotion.json to the proposer as "what already lost"),
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# and with the default --generations 1 there is no earlier generation
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# in-process to supply it. Every Saturday would otherwise propose
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# from a blank slate and could re-propose the same rejected candidate
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# forever. Best-effort by design: a first run, an expired artifact,
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# or a download failure must not cost a whole generation.
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if ! command -v gh >/dev/null; then
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echo '::warning::gh is not installed on this runner — proposing without prior evidence. The promotion-PR step needs gh too.'
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exit 0
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fi
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previous="$(gh run list \
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--repo "${GITHUB_REPOSITORY}" \
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--workflow gitnexus-skill-evolution.yml \
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--branch main \
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--status success \
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--limit 5 \
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--json databaseId \
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--jq "map(.databaseId) | map(select(. != ${GITHUB_RUN_ID})) | first // empty")"
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if [[ -z "${previous}" ]]; then
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echo 'No prior successful run to seed from; the proposer starts from the learnings queue only.'
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exit 0
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fi
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seed_root="${RUNNER_TEMP}/wfseed"
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rm -rf "${seed_root}"
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mkdir -p "${seed_root}"
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if ! gh run download "${previous}" --repo "${GITHUB_REPOSITORY}" --dir "${seed_root}"; then
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echo "::warning::Evidence from run ${previous} could not be downloaded (expired past its retention?); proposing without it."
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exit 0
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fi
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# The artifact holds gen-N/bench/{results.jsonl,promotion.json,...};
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# the highest generation is the one that actually reached the gate.
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latest="$(find "${seed_root}" -type f -path '*/gen-*/bench/results.jsonl' | sort -V | tail -1)"
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if [[ -z "${latest}" ]]; then
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echo "::warning::Run ${previous} uploaded no benchmark results; proposing without prior evidence."
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exit 0
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fi
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echo "Seeding the proposer from run ${previous}: $(dirname "${latest}")"
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echo "seed=$(dirname "${latest}")" >> "${GITHUB_OUTPUT}"
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- name: Run the propose → benchmark → gate loop
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id: loop
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# Kill the sweep with time left in the job to upload what it produced.
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# See the budget nesting on the job above.
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timeout-minutes: 1140
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env:
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GITNEXUS_BENCH_AUTH_TOKEN: ${{ secrets.GITNEXUS_BENCH_AUTH_TOKEN }}
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# The step's stdout is a pipe, so CPython block-buffers it and a
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# multi-hour generation would report nothing until it exits (run
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# 29907431284 emitted every line at the same timestamp, 14h45m in).
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PYTHONUNBUFFERED: '1'
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SEED_RESULTS: ${{ steps.seed.outputs.seed }}
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run: |
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set -euo pipefail
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extra=()
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if [[ -n "${INCLUDE_EXPENSIVE}" ]]; then
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extra+=(--include-expensive)
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fi
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if [[ -n "${SEED_RESULTS}" ]]; then
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extra+=(--seed-results "${SEED_RESULTS}")
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fi
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uv run --locked --extra dev python -m workflow_bench.evolve \
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--tasks workflow_bench/tasks.scenarios.yaml \
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--model "${MODEL}" \
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--proposer-model "${PROPOSER_MODEL}" \
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--generations "${GENERATIONS}" \
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--runs "${RUNS}" \
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--workers "${WORKERS}" \
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--claude-bin "${RUNNER_TEMP}/claude-canary/node_modules/@anthropic-ai/claude-code-linux-x64/claude" \
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--out-root "${RUNNER_TEMP}/wfevolve" \
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--apply \
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"${extra[@]}"
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working-directory: eval
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- name: Upload benchmark evidence
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# Unconditional: the sweep writes results.jsonl and transcripts as it
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# goes, so a killed or failed generation still has evidence worth
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# keeping — and that is exactly the run whose evidence is needed.
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if: always()
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uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
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with:
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name: gitnexus-evolution-${{ github.run_id }}-${{ github.run_attempt }}
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# Addressed directly rather than carried from the sweep step: that is
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# the step whose death is the reason this upload matters, and a value
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# threaded from it would not be there when it counts.
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path: ${{ runner.temp }}/wfevolve
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retention-days: 14
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if-no-files-found: warn
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- name: Detect and bound the applied promotion
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id: promotion
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run: |
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set -euo pipefail
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changed="$(git status --porcelain)"
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if [[ -z "${changed}" ]]; then
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echo 'No promotion this run; the incumbent skills stand.'
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echo "promoted=false" >> "${GITHUB_OUTPUT}"
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exit 0
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fi
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# The apply step may only touch the canonical skill tree and its
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# shipped mirrors. Anything else means the overlay escaped its
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# boundary — refuse to open a PR from it.
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while IFS= read -r line; do
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path="${line:3}"
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case "${path}" in
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.claude/skills/*|gitnexus/skills/*|gitnexus-claude-plugin/skills/*) ;;
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*)
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echo "::error::Promotion touched a path outside the skill trees: ${path}"
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exit 1
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;;
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esac
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done <<< "${changed}"
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echo "promoted=true" >> "${GITHUB_OUTPUT}"
|
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# The loop returns on the first promotion, so the highest-numbered
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# gen-N/bench/promotion.json is the decision that actually fired.
|
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# Emit only that one — never every generation's, or a rejected
|
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# generation's decisions could surface in the PR body. The heredoc
|
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# uses a per-run random delimiter so a summary value that ever
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# contains the marker cannot close the block early and inject keys.
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promotion_file="$(find "${RUNNER_TEMP}/wfevolve" -name promotion.json | sort -V | tail -1)"
|
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delim="PROMOTION_EOF_$(openssl rand -hex 16)"
|
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{
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echo "summary<<${delim}"
|
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if [[ -n "${promotion_file}" ]]; then
|
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tail -c 8000 "${promotion_file}"
|
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fi
|
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echo
|
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echo "${delim}"
|
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} >> "${GITHUB_OUTPUT}"
|
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|
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- name: Mint GitHub App token
|
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id: app-token
|
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if: steps.promotion.outputs.promoted == 'true'
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uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
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with:
|
||
# `client-id` supersedes the deprecated `app-id` in v3.x (the action
|
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# accepts the numeric App ID here, as publish.yml does). Request only
|
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# the permissions this job needs — push a branch and open a PR — so
|
||
# the minted token drops the installation's other grants (e.g.
|
||
# Workflows: write).
|
||
client-id: ${{ secrets.RELEASE_APP_ID }}
|
||
private-key: ${{ secrets.RELEASE_APP_PRIVATE_KEY }}
|
||
permission-contents: write
|
||
permission-pull-requests: write
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||
|
||
- name: Open the promotion PR
|
||
if: steps.promotion.outputs.promoted == 'true'
|
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env:
|
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APP_TOKEN: ${{ steps.app-token.outputs.token }}
|
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GH_TOKEN: ${{ steps.app-token.outputs.token }}
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PROMOTION_SUMMARY: ${{ steps.promotion.outputs.summary }}
|
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RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
|
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run: |
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set -euo pipefail
|
||
# Include the run attempt: GITHUB_RUN_ID is stable across re-runs, so
|
||
# a re-run after a push-succeeds/PR-create-fails partial failure needs
|
||
# a fresh branch to push (a non-force push to the existing branch
|
||
# would be rejected non-fast-forward and wedge the lane).
|
||
branch="evolution/skills-${GITHUB_RUN_ID}-${GITHUB_RUN_ATTEMPT}"
|
||
git config user.name 'gitnexus-evolution[bot]'
|
||
git config user.email 'gitnexus-evolution[bot]@users.noreply.github.com'
|
||
git checkout -b "${branch}"
|
||
git add .claude/skills gitnexus/skills gitnexus-claude-plugin/skills
|
||
git commit -m 'feat(skills): promoted evolution overlay (gate-passed)'
|
||
|
||
# The App token reaches git through GIT_ASKPASS reading step env at
|
||
# push time — it never appears in argv, git config, or the checkout.
|
||
askpass="${RUNNER_TEMP}/evolution-askpass"
|
||
cat > "${askpass}" <<'ASKPASS_EOF'
|
||
#!/usr/bin/env bash
|
||
printf '%s\n' "${APP_TOKEN}"
|
||
ASKPASS_EOF
|
||
chmod 0700 "${askpass}"
|
||
GIT_ASKPASS="${askpass}" GIT_TERMINAL_PROMPT=0 git push \
|
||
"https://x-access-token@github.com/${GITHUB_REPOSITORY}.git" \
|
||
"HEAD:refs/heads/${branch}"
|
||
|
||
{
|
||
cat <<'BODY_HEAD'
|
||
Automated skill-evolution promotion. The deterministic gate passed; this PR is the human-review step — inspect the diff and the evidence before merging.
|
||
BODY_HEAD
|
||
printf '\n%s\n\n' "Benchmark evidence: ${RUN_URL} (artifact gitnexus-evolution-${GITHUB_RUN_ID}-${GITHUB_RUN_ATTEMPT})."
|
||
cat <<'BODY_OPEN'
|
||
<details><summary>Promotion decisions</summary>
|
||
|
||
```json
|
||
BODY_OPEN
|
||
printf '%s\n' "${PROMOTION_SUMMARY}"
|
||
cat <<'BODY_CLOSE'
|
||
```
|
||
|
||
</details>
|
||
BODY_CLOSE
|
||
} > "${RUNNER_TEMP}/pr-body.md"
|
||
gh pr create \
|
||
--repo "${GITHUB_REPOSITORY}" \
|
||
--base main \
|
||
--head "${branch}" \
|
||
--title 'feat(skills): promoted evolution overlay' \
|
||
--body-file "${RUNNER_TEMP}/pr-body.md"
|