checkpoint

⚒️ Generated with [Fabro](https://fabro.sh)

stages/004-preflight_lint@1/output.log

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stages/004-preflight_lint@1/script_timing.json

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stages/004-preflight_lint@1/status.json

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+{
+  "outcome": "succeeded",
+  "notes": "Script completed: cargo +nightly-2026-04-14 clippy -q --workspace --all-targets -- -D warnings 2>&1",
+  "failure_reason": null,
+  "timestamp": "2026-07-01T16:24:40.578472462Z"
+}

stages/005-implement@1/prompt.md

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+Goal: # Plan A — `SecretRedactor` in `fabro-redact`
+
+**This is Plan A of three** (split for parallel execution):
+
+- **Plan A (this file)** — add a per-run secret-value redactor to `fabro-redact`.
+  Self-contained; touches only `fabro-redact/`. **Run in parallel with Plan B.**
+- **Plan B** — resolve `secrets.*` tokens at the run boundary. **Run in parallel
+  with Plan A.**
+- **Plan C** — wire redaction across leak surfaces + hooks. **Run after A and B
+  merge** (it consumes this crate's type and Plan B's lookup).
+
+This plan is inert on its own: it adds a tested library primitive that Plan C
+wires up. Shipping it alone changes no behavior.
+
+> **Token notation.** Interpolation tokens are written in this file without their
+> enclosing double curly braces, so the file is safe to pass directly as a
+> workflow goal (the goal templater would otherwise try to expand them). Read
+> `secrets.NAME`, `env.NAME`, and `secrets.*` as the double-curly-brace-wrapped
+> token form used everywhere else in the codebase, and write the real
+> double-brace syntax in the code, tests, and docs you produce.
+
+---
+
+## Overall goal (shared context)
+
+Make secret tokens (`secrets.NAME`) in workflow config resolve from the server
+vault, at the run boundary, with values that never get persisted, never leak, and
+fail closed when a secret is missing or the wrong type. The redaction guarantee
+for declared secrets is: content-based redaction (already present) is the
+universal baseline, plus a per-run registry of resolved secret **values** so a
+declared secret is redacted even when it does not look like a credential. **This
+plan builds that registry primitive.**
+
+Why per-run and not a process global: a test-only in-process run path executes
+multiple runs in the same process, so redaction state must be per-run, never a
+`static`/global.
+
+## Conventions
+
+- **TDD.** Write the failing test first, then the code.
+- Match the codebase: Rust import style (types by name, functions via parent
+  module, no glob imports in production), `strum` for enum string maps, keep
+  test-only helpers behind `#[cfg(test)]`.
+- Plain-English commit messages, PR text, and comments — no internal planning
+  identifiers.
+- The verify gate runs nightly `fmt --check`, nightly
+  `clippy --all-targets -D warnings`, `cargo nextest run --workspace`, docs check,
+  web/api-client typecheck, and a release build. Implement so all pass.
+- Never print or log a secret value.
+
+---
+
+## Implementation
+
+### A.1 — Add the `SecretRedactor` type
+
+File: new `lib/crates/fabro-redact/src/secret_registry.rs`, exported from
+`lib/crates/fabro-redact/src/lib.rs`.
+
+Add a cheap, cloneable, per-run registry of secret values that redacts exact
+matches regardless of shape. It composes *after* the existing content-based
+redaction (`redact_string`, `redact_json_value`) — this type does not replace
+them.
+
+Shape:
+
+- `SecretRedactor` backed by shared, interior-mutable state (e.g.
+  `Arc<Mutex<Vec<String>>>` or `Arc<RwLock<...>>`) so a clone handed to a
+  different subsystem observes registrations. Derive `Clone` and `Default`; an
+  empty redactor is a pure no-op.
+- `fn register(&self, value: impl Into<String>)` — store a secret value to be
+  redacted. **Ignore empty or whitespace-only values** (registering an empty
+  string would turn all output into `REDACTED`). De-duplicate.
+- `fn redact_into(&self, s: &str) -> String` — replace every registered value
+  substring with the same `"REDACTED"` marker used by `redact_string`. Replace
+  **longest values first** so a secret that is a substring of another is handled
+  correctly. If the registry is empty, return the input unchanged (fast path).
+- `fn redact_json(&self, value: serde_json::Value) -> serde_json::Value` — walk
+  the JSON tree and apply `redact_into` to every string leaf (both object values
+  and array elements; object keys are left as-is). Exact-value matching is
+  unambiguous, so unlike `redact_json_value` this pass does not skip any keys.
+- Optional `fn is_empty(&self) -> bool` for callers that want to skip work.
+
+Reuse the crate's existing `"REDACTED"` replacement marker (see `redact_string`
+in `lib.rs`) rather than introducing a new literal.
+
+### A.2 — Tests (unit, in the new module)
+
+- A **low-entropy** value (e.g. `"staging"`) that `redact_string` would *not*
+  catch is replaced with `REDACTED` by `redact_into` after `register("staging")`.
+- Registering `""` or `"   "` is a no-op: `redact_into` leaves unrelated text
+  intact (guard against the empty-value footgun).
+- Overlapping values: register both `"abc"` and `"abcdef"`; `redact_into` on a
+  string containing `"abcdef"` redacts the whole token (longest-first), not just
+  the `"abc"` prefix.
+- Empty registry: `redact_into` and `redact_json` are the identity.
+- `redact_json` redacts a registered value nested inside an object value and
+  inside an array element.
+- A clone of the redactor observes values registered through the original (shared
+  state), proving it can be handed to another subsystem.
+
+### A.3 — Verify
+
+- `cargo +nightly-2026-04-14 fmt --check --all`
+- `cargo +nightly-2026-04-14 clippy --workspace --all-targets -- -D warnings`
+- `cargo nextest run -p fabro-redact`
+- release build (`cargo dev build -- -p fabro-cli --release`)
+
+## Dependencies
+
+None. Parallel-safe with Plan B. This type is consumed by Plan C.
+
+
+## Completed stages
+- **toolchain**: succeeded
+  - Script: `command -v cargo >/dev/null || { curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y && sudo ln -sf $HOME/.cargo/bin/* /usr/local/bin/; }; cargo --version 2>&1`
+  - Output:
+    ```
+    cargo 1.95.0 (f2d3ce0bd 2026-03-21)
+    ```
+- **preflight_compile**: succeeded
+  - Script: `cargo check -q --workspace 2>&1`
+  - Output: (empty)
+- **preflight_lint**: succeeded
+  - Script: `cargo +nightly-2026-04-14 clippy -q --workspace --all-targets -- -D warnings 2>&1`
+  - Output: (empty)
+
+
+Read the plan file referenced in the goal and implement every step. Make all the code changes described in the plan. Use red/green TDD.

stages/005-implement@1/provider_used.json

@@ -0,0 +1,6 @@
+{
+  "mode": "agent",
+  "provider": "openai",
+  "model": "gpt-5.5",
+  "reasoning_effort": "xhigh"
+}

stages/005-implement@1/response.md

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+Implemented Plan A in `fabro-redact`.
+
+Summary:
+- Added `SecretRedactor` in `lib/crates/fabro-redact/src/secret_registry.rs`.
+- Exported it from `lib/crates/fabro-redact/src/lib.rs`.
+- Reused the crate’s shared `REDACTION_MARKER` constant.
+- Implemented:
+  - shared cloneable per-run state via `Arc<RwLock<Vec<String>>>`
+  - `register`, ignoring empty/whitespace-only values and de-duplicating
+  - `redact_into`, using longest-first exact-match redaction
+  - `redact_json`, redacting all JSON string leaves while preserving object keys
+  - `is_empty`
+- Added unit tests covering low-entropy values, empty values, overlaps, empty identity behavior, nested JSON, and shared clone state.
+
+TDD:
+- Red step confirmed: `cargo nextest run -p fabro-redact` failed before implementation because `SecretRedactor` was missing.
+- Green step passed after implementation.
+
+Verification run:
+- `cargo +nightly-2026-04-14 fmt --check --all`
+- `cargo +nightly-2026-04-14 clippy --workspace --all-targets -- -D warnings`
+- `cargo nextest run -p fabro-redact`
+- `cargo dev build -- -p fabro-cli --release`
+- `cargo dev docs check`
+- `cd apps/fabro-web && bun run typecheck`
+- `cd lib/packages/fabro-api-client && bun run typecheck`
+- `cargo nextest run --workspace`
+
+All passed. Note: the first release build attempt failed because Bun workspace dependencies were not installed; I ran `bun install --frozen-lockfile` and reran successfully. No tracked files were changed by that install.