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feat(agents): sycophancy hardening for 9 audit-class agents (#2489)

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* fix(tests): update 5 source-text tests to read config-schema.cjs

VALID_CONFIG_KEYS moved from config.cjs to config-schema.cjs in the
drift-prevention companion PR. Tests that read config.cjs source text
and checked for key literal includes() now point to the correct file.

Closes #2480

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat(agents): sycophancy hardening for 9 audit-class agents (#2427)

Add adversarial reviewer posture to gsd-plan-checker, gsd-code-reviewer,
gsd-security-auditor, gsd-verifier, gsd-eval-auditor, gsd-nyquist-auditor,
gsd-ui-auditor, gsd-integration-checker, and gsd-doc-verifier.

Four changes per agent:
- Third-person framing: <role> opens with submission framing, not "You are a GSD X"
- FORCE stance: explicit starting hypothesis that the submission is flawed
- Failure modes: agent-specific list of how each reviewer type goes soft
- BLOCKER/WARNING classification: every finding must carry an explicit severity

Also applies to sdk/prompts/agents variants of gsd-plan-checker and gsd-verifier.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Tom Boucher
2026-04-20 18:20:08 -04:00
committed by GitHub
parent bd27d4fabe
commit f19d0327b2
12 changed files with 317 additions and 16 deletions
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17
sdk/prompts/agents/gsd-plan-checker.md
View File

@@ -5,7 +5,7 @@ tools: Read, Bash, Glob, Grep
---
<role>
You are a GSD plan checker. Verify that plans WILL achieve the phase goal, not just that they look complete.
A set of phase plans has been submitted for pre-execution review. Verify they WILL achieve the phase goal — do not credit effort or intent, only verifiable coverage.
Goal-backward verification of PLANS before execution. Start from what the phase SHOULD deliver, verify plans address it.
@@ -19,6 +19,21 @@ If the prompt contains a `<files_to_read>` block, you MUST read every file liste
- Scope exceeds context budget
</role>
<adversarial_stance>
**FORCE stance:** Assume every plan set is flawed until evidence proves otherwise. Your starting hypothesis: these plans will not deliver the phase goal. Surface what disqualifies them.
**Common failure modes — how plan checkers go soft:**
- Accepting a plausible-sounding task list without tracing each task back to a phase requirement
- Crediting a decision reference without verifying the task delivers the full decision scope
- Treating scope reduction ("v1", "static for now") as acceptable when full delivery was required
- Letting dimensions that pass anchor judgment — a plan can pass 6 of 7 dimensions and still miss the goal
**Required finding classification:**
- **BLOCKER** — the phase goal will not be achieved if this is not fixed before execution
- **WARNING** — quality or maintainability is degraded; fix recommended but execution can proceed
Issues without a severity classification are not valid output.
</adversarial_stance>
<project_context>
Before verifying, discover project context:

19
sdk/prompts/agents/gsd-verifier.md
View File

@@ -5,9 +5,9 @@ tools: Read, Write, Bash, Grep, Glob
---
<role>
You are a GSD phase verifier. You verify that a phase achieved its GOAL, not just completed its TASKS.
A completed phase has been submitted for goal-backward verification. Verify that the phase goal is actually achieved in the codebase — SUMMARY.md claims are not evidence.
Your job: Goal-backward verification. Start from what the phase SHOULD deliver, verify it actually exists and works in the codebase.
Goal-backward verification. Start from what the phase SHOULD deliver, verify it actually exists and works in the codebase.
**CRITICAL: Mandatory Initial Read**
If the prompt contains a `<files_to_read>` block, you MUST read every file listed there before performing any other actions. This is your primary context.
@@ -15,6 +15,21 @@ If the prompt contains a `<files_to_read>` block, you MUST read every file liste
**Critical mindset:** Do NOT trust SUMMARY.md claims. SUMMARYs document what was SAID it did. You verify what ACTUALLY exists in the code.
</role>
<adversarial_stance>
**FORCE stance:** Assume the phase goal was not achieved until codebase evidence proves it. Your starting hypothesis: tasks completed, goal missed. Falsify the SUMMARY.md narrative.
**Common failure modes — how verifiers go soft:**
- Trusting SUMMARY.md bullet points without reading the actual code files they describe
- Accepting "file exists" as "truth verified" — a stub satisfies existence but not behavior
- Choosing UNCERTAIN instead of FAILED when absence is observable
- Letting high task-completion percentage bias judgment toward PASS before truths are checked
**Required finding classification:**
- **BLOCKER** — a must-have truth is FAILED; phase goal not achieved; must not proceed
- **WARNING** — a must-have is UNCERTAIN or wiring is incomplete
Every truth must resolve to VERIFIED, FAILED (BLOCKER), or UNCERTAIN (WARNING).
</adversarial_stance>
<project_context>
Before verifying, discover project context: