fix(daily-syntax-error-quality): reduce token usage from 6M to ~150-400K/run by Copilot · Pull Request #29169 · github/gh-aw

Copilot · 2026-04-29T17:09:48Z

The Daily Syntax Error Quality Check consumed 6.07M tokens in a single run — ~14% of the daily Copilot budget — due to several compounding issues that bypassed the 2026-04-06 guardrails.

Root causes

235 candidates listed to agent — agent browsed many files to compare complexity before selecting 2
cat .github/workflows/*.md bash permission — allowed reading all workflow files in full
Turn limit regressed to 30 — should have been 20 per the original optimization intent
Early-stop threshold too tight (≥70/no score <55) — rarely fired
Verbose per-dimension rubric (~115 lines repeated each run) inflated prompt context

Changes

`daily-syntax-error-quality.md`

Pre-step now uses shuf -n 5 to give the agent exactly 5 random candidates instead of 235
Removed cat .github/workflows/*.md, find, and open-ended head -n * bash permissions; agent limited to head -n 30 previews
Fixed turn target: 30 → 20
Lowered early-stop: avg ≥70 & no score <55 → avg ≥65 & no score <50 (fires more frequently on healthy runs)
Replaced ~115-line per-level rubric with a single compact table (~15 lines)

`scratchpad/token-budget-guidelines.md`

Updated budget target for this workflow: 300K–2M → 150K–400K (typical)
Added revision history entry referencing this incident

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

https://api.github.com/graphql
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https://api.github.com/repos/github/gh-aw/contents/.github/workflows/shared/reporting.md
- Triggering command: /tmp/go-build4042281852/b404/cli.test /tmp/go-build4042281852/b404/cli.test -test.testlogfile=/tmp/go-build4042281852/b404/testlog.txt -test.paniconexit0 -test.v=true -test.parallel=4 -test.timeout=10m0s -test.run=^Test -test.short=true GOINSECURE GOMOD GOMODCACHE x_amd64/compile env -json GO111MODULE x_amd64/compile GOINSECURE GOMOD GOMODCACHE x_amd64/compile (http block)
https://api.github.com/repos/github/gh-aw/git/ref/tags/v0.47.4
- Triggering command: /usr/bin/gh gh api /repos/github/gh-aw/git/ref/tags/v0.47.4 --jq [.object.sha, .object.type] | @tsv --show-toplevel ache/go/1.25.8/x64/pkg/tool/linuorigin /usr/bin/git CommaSeparatedCogit -trimpath 1/x64/bin/node git rev-�� --show-toplevel /opt/hostedtoolcache/go/1.25.8/x64/pkg/tool/linu-buildtags /usr/bin/git vaScript25086156du -trimpath e/git git (http block)
https://api.github.com/repos/github/gh-aw/git/ref/tags/v1.0.0
- Triggering command: /usr/bin/gh gh api /repos/github/gh-aw/git/ref/tags/v1.0.0 --jq [.object.sha, .object.type] | @tsv 2125-34101/test-source-field-variant-2906577351/.github/workflows 2281852/b035/vet.cfg .cfg -p internal/unsafeh-1 -lang=go1.25 ache/go/1.25.8/x64/pkg/tool/linu-test.v=true 8436�� /tmp/go-build2218436958/b114/_pk-test.timeout=10m0s pkg/mod/github.com/modelcontextp-test.run=^Test ache/go/1.25.8/x64/pkg/tool/linu-test.short=true -p net/netip -lang=go1.25 ache/go/1.25.8/x64/pkg/tool/linuremote.origin.url (http block)
https://api.github.com/repos/github/gh-aw/git/ref/tags/v1.2.3
- Triggering command: /usr/bin/gh gh api /repos/github/gh-aw/git/ref/tags/v1.2.3 --jq [.object.sha, .object.type] | @tsv -json GO111MODULE x_amd64/vet GOINSECURE GOMOD GOMODCACHE x_amd64/vet env -json GO111MODULE x_amd64/vet GOINSECURE GOMOD GOMODCACHE x_amd64/vet (http block)
https://api.github.com/repos/github/gh-aw/git/ref/tags/v2.0.0
- Triggering command: /usr/bin/gh gh api /repos/github/gh-aw/git/ref/tags/v2.0.0 --jq [.object.sha, .object.type] | @tsv -json GO111MODULE x_amd64/vet GOINSECURE GOMOD GOMODCACHE x_amd64/vet 6240�� g_.a GO111MODULE x_amd64/vet GOINSECURE GOMOD GOMODCACHE x_amd64/vet (http block)
- Triggering command: /usr/bin/gh gh api /repos/github/gh-aw/git/ref/tags/v2.0.0 --jq [.object.sha, .object.type] | @tsv " GO111MODULE x_amd64/vet GOINSECURE GOMOD GOMODCACHE x_amd64/vet env Gitmain_branch2216240207/001' Gitmain_branch2216240207/001' x_amd64/vet GOINSECURE GOMOD GOMODCACHE x_amd64/vet (http block)
- Triggering command: /usr/bin/gh gh api /repos/github/gh-aw/git/ref/tags/v2.0.0 --jq [.object.sha, .object.type] | @tsv on GO111MODULE x_amd64/vet GOINSECURE GOMOD GOMODCACHE x_amd64/vet env Gitmaster_branchremote.origin.url Gitmaster_branch2435786768/001' x_amd64/vet GOINSECURE GOMOD GOMODCACHE x_amd64/vet (http block)
https://api.github.com/repos/github/gh-aw/git/ref/tags/v3.0.0
- Triggering command: /usr/bin/gh gh api /repos/github/gh-aw/git/ref/tags/v3.0.0 --jq [.object.sha, .object.type] | @tsv -json eutil.go x_amd64/vet GOINSECURE GOMOD GOMODCACHE x_amd64/vet env g_.a GO111MODULE x_amd64/vet GOINSECURE GOMOD GOMODCACHE x_amd64/vet (http block)
https://api.github.com/repos/nonexistent/action/git/ref/tags/v999.999.999
- Triggering command: /usr/bin/gh gh api /repos/nonexistent/action/git/ref/tags/v999.999.999 --jq [.object.sha, .object.type] | @tsv 2125-34101/test-source-field-variant-2906577351 2281852/b046/vet.cfg k -I /tmp/go-build221init -I ache/go/1.25.8/x64/pkg/tool/linu-trimpath sRem�� se 2281852/b121/vet.cfg ache/go/1.25.8/x64/pkg/tool/linu-lang=go1.25 -p internal/poll -lang=go1.25 ache/go/1.25.8/x12345 (http block)
https://api.github.com/repos/nonexistent/repo/actions/runs/12345
- Triggering command: /usr/bin/gh gh run view 12345 --repo nonexistent/repo --json status,conclusion GOINSECURE t/internal/languinit GOMODCACHE ache/go/1.25.8/x/tmp/go-build4042281852/b472/_testmain.go (http block)
https://api.github.com/repos/owner/repo/actions/workflows
- Triggering command: /usr/bin/gh gh workflow list --json name,state,path --repo owner/repo x_amd64/compile GOINSECURE GOMOD GOMODCACHE x_amd64/compile env -json GO111MODULE x_amd64/vet GOINSECURE GOMOD sm_wasm.s x_amd64/vet (http block)
- Triggering command: /usr/bin/gh gh workflow list --json name,state,path --repo owner/repo x_amd64/compile GOINSECURE GOMOD GOMODCACHE x_amd64/compile env -json GO111MODULE x_amd64/vet GOINSECURE GOMOD emclr_wasm.s x_amd64/vet (http block)
- Triggering command: /usr/bin/gh gh workflow list --repo owner/repo --json name,path,state ache/go/1.25.8/x64/pkg/tool/linux_amd64/vet GOINSECURE GOMOD GOMODCACHE ache/go/1.25.8/x64/pkg/tool/linux_amd64/vet 8436�� /tmp/go-build2218436958/b105/_pkg_.a pkg/mod/github.com/google/jsonschema-go@v0.4.3/jsonschema/annotations.go .cfg -p log/internal -lang=go1.25 ache/go/1.25.8/xrepos/{owner}/{repo}/actions/runs/12346/artifacts (http block)
https://api.github.com/repos/test-owner/test-repo/actions/secrets
- Triggering command: /usr/bin/gh gh api /repos/test-owner/test-repo/actions/secrets --jq .secrets[].name -json go x_amd64/compile GOINSECURE GOMOD GOMODCACHE x_amd64/compile env -json GO111MODULE x_amd64/vet GOINSECURE GOMOD GOMODCACHE x_amd64/vet (http block)
https://api.github.com/repos/test/repo
- Triggering command: /usr/bin/gh gh api /repos/test/repo --jq .default_branch se 2281852/b175/vet.cfg 64/pkg/tool/linux_amd64/vet GOSUMDB GOWORK 64/bin/go 64/pkg/tool/linux_amd64/vet -o 8436958/b202/importcfg -trimpath ache/go/1.25.8/x64/pkg/tool/linux_amd64/vet -p strings -lang=go1.25 ache/go/1.25.8/x4 (http block)
invalid.example.invalid
- Triggering command: /usr/lib/git-core/git-remote-https /usr/lib/git-core/git-remote-https origin https://invalid.example.invalid/nonexistent-repo.git git conf�� '/tmp/bare-incremental-6T65pS' '/tmp/bare-incremental-6T65pS' cal/bin/git 3 git ode-gyp-bin/git git comm�� -m Initial commit k/gh-aw/gh-aw/node_modules/.bin/git -m Initial commit e_modules/.bin/gagent-change.txt git (dns block)

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github-actions · 2026-04-29T17:24:04Z

Hey @Copilot 👋 — great direction on optimizing the daily syntax error quality check for token usage! Pre-selecting candidates, tightening turn limits, and condensing rubrics are all meaningful improvements to the agentic workflow pipeline.

A couple of things to address before this is ready for review:

No diff / empty changeset — the PR currently shows no file changes. Once commits land, make sure the workflow files and scratchpad/token-budget-guidelines.md are included, along with the recompiled lock file (make recompile).
No tests — if any Go code or workflow-validation logic is touched, add or update corresponding test cases to satisfy the make test gate.
Still marked WIP/draft — remove the [WIP] prefix and convert from draft once the checklist items in the PR body are all ticked off.

If you'd like a hand completing this, you can use the prompt below:

Complete the changes described in the PR checklist for optimizing the daily syntax error quality check:
1. Pre-select 5 random candidates in the pre-step.
2. Remove cat .github/workflows/*.md from the bash allowlist.
3. Fix turn limit: change to ≤ 20 turns in the Token Budget Guidelines section.
4. Lower early-stop threshold from ≥ 70 to ≥ 65.
5. Condense verbose scoring rubrics to reduce prompt context size.
6. Update scratchpad/token-budget-guidelines.md with a revision history entry.
7. Run make recompile and commit the updated lock file.
Ensure all existing tests still pass with make test.

Generated by Contribution Check · ● 1.2M · ◷

…mption - Pre-select 5 random candidates in pre-step (was 235 candidates listed) - Remove cat .github/workflows/*.md bash permission (prevented mass file reads) - Remove open-ended find and head -n * bash permissions - Fix turn target: 30 -> 20 (corrects accidental regression from 2026-04-06) - Lower early-stop threshold: >=70 -> >=65 (fires more often for healthy runs) - Lower individual score floor: <55 -> <50 - Condense verbose scoring rubric ~115 lines -> compact table ~15 lines - Update scratchpad/token-budget-guidelines.md with new revision history Expected token reduction: 6M -> 150K-400K per typical run Agent-Logs-Url: https://github.com/github/gh-aw/sessions/ff17a14e-a4cf-4c57-96ab-3ce4329bce12 Co-authored-by: gh-aw-bot <259018956+gh-aw-bot@users.noreply.github.com>

Copilot

Pull request overview

Reduces token usage for the “Daily Syntax Error Quality Check” agentic workflow by narrowing candidate selection, tightening shell tool permissions, lowering early-stop thresholds, and compressing the scoring rubric.

Changes:

Pre-selects 5 random candidate workflows (instead of presenting ~235) and updates prompt guidance accordingly.
Removes broad workflow-reading bash permissions and enforces a 20-turn target with more aggressive early-stop thresholds.
Updates token budget documentation to reflect the new expected usage range and records the incident in revision history.

Show a summary per file

File	Description
`.github/workflows/daily-syntax-error-quality.md`	Narrows candidate set, tightens bash tool permissions, lowers early-stop thresholds, and compresses rubric to reduce token usage.
`.github/workflows/daily-syntax-error-quality.lock.yml`	Regenerated compiled workflow reflecting the updated markdown workflow definition.
`scratchpad/token-budget-guidelines.md`	Updates budget targets/estimates and adds a revision history entry for this re-optimization.

Copilot's findings

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Files reviewed: 3/3 changed files
Comments generated: 2

Copilot · 2026-04-29T18:09:15Z

-    - "head -n * .github/workflows/*.md"
+    - "head -n 30 .github/workflows/*.md"
    - "cp .github/workflows/*.md /tmp/gh-aw/syntax-error-tests/*.md"
    - "cat /tmp/gh-aw/syntax-error-tests/*.md"


The prompt instructs the agent to cat /tmp/gh-aw/agent/candidates.txt, but the workflow’s allowed bash tools don’t include reading that file (only cat /tmp/gh-aw/syntax-error-tests/*.md). This will prevent the agent from viewing the pre-selected candidates and can break Phase 1.

Add an explicit bash tool allow entry for cat /tmp/gh-aw/agent/candidates.txt (or a tightly-scoped pattern for that directory) and recompile to update the lock file.

Suggested change

- "cat /tmp/gh-aw/syntax-error-tests/*.md"

- "cat /tmp/gh-aw/syntax-error-tests/*.md"

- "cat /tmp/gh-aw/agent/candidates.txt"

Copilot · 2026-04-29T18:09:16Z

 | CI Optimization Coach | 300K-600K | >1M | >1.5M |
 | Step Name Alignment | 300K-500K | >800K | >1.2M |
-| Daily Syntax Error Quality Check | 300K-2M | >2M | >4M |
+| Daily Syntax Error Quality Check | 150K-1.5M | >2M | >4M |


In this document, the Daily Syntax Error Quality Check budget is described above as “150K–400K (typical)… up to 1.5M (issue-creating)”, but the alert table lists the Target Tokens as “150K-1.5M”, which reads like the typical target range. Consider updating the table’s target range to match the typical target (150K–400K) and keeping “up to 1.5M” in a separate note/column if needed.

Suggested change

| Daily Syntax Error Quality Check | 150K-1.5M | >2M | >4M |

| Daily Syntax Error Quality Check | 150K-400K | >2M | >4M |

Initial plan

a4966af

Copilot AI assigned Copilot and gh-aw-bot Apr 29, 2026

Copilot started work on behalf of gh-aw-bot April 29, 2026 17:09 View session

Copilot AI linked an issue Apr 29, 2026 that may be closed by this pull request

[deep-report] Optimize Daily Syntax Error Quality Check — 6.07M tokens in single run #29148

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github-actions Bot mentioned this pull request Apr 29, 2026

[Contribution Check Report] Contribution Check — 2026-04-29 #29028

Closed

Copilot AI changed the title ~~[WIP] Optimize daily syntax error quality check for token usage~~ fix(daily-syntax-error-quality): reduce token usage from 6M to ~150-400K/run Apr 29, 2026

Copilot finished work on behalf of gh-aw-bot April 29, 2026 17:31

Copilot AI requested a review from gh-aw-bot April 29, 2026 17:31

pelikhan marked this pull request as ready for review April 29, 2026 18:04

Copilot AI review requested due to automatic review settings April 29, 2026 18:04

pelikhan merged commit e1f659c into main Apr 29, 2026

pelikhan deleted the copilot/deep-report-optimize-daily-syntax-check branch April 29, 2026 18:04

Copilot started reviewing on behalf of pelikhan April 29, 2026 18:05 View session

Copilot AI reviewed Apr 29, 2026

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github-actions Bot mentioned this pull request Apr 29, 2026

[aw] No-Op Runs #29134

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fix(daily-syntax-error-quality): reduce token usage from 6M to ~150-400K/run#29169

fix(daily-syntax-error-quality): reduce token usage from 6M to ~150-400K/run#29169
pelikhan merged 2 commits intomainfrom
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Copilot AI commented Apr 29, 2026 •

edited

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	- "cat /tmp/gh-aw/syntax-error-tests/*.md"
	- "cat /tmp/gh-aw/syntax-error-tests/*.md"
	- "cat /tmp/gh-aw/agent/candidates.txt"

	\| Daily Syntax Error Quality Check \| 150K-1.5M \| >2M \| >4M \|
	\| Daily Syntax Error Quality Check \| 150K-400K \| >2M \| >4M \|

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scratchpad/token-budget-guidelines.md

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Copilot AI commented Apr 29, 2026 •

edited

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`daily-syntax-error-quality.md`

`scratchpad/token-budget-guidelines.md`