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Sprint 04 Validation Report (2026-02-20)

Scope

  1. Hardening regression checks after Sprint 04 code changes.
  2. Automated reliability checks for daemon restart resilience.
  3. Runtime race validation for active prompt interruption paths.

Commands

  1. cargo test --workspace
  2. ./examples/validate-sprint-04.sh (executed with default stub backend)
  3. ./examples/validate-sprint-04-runtime.sh (executed with polkit backend)

Results

  1. Workspace tests passed (41 garcard tests + workspace crates).
  2. validate-sprint-04.sh passed baseline and restart loop checks:
    • daemon reachable via ping/status
    • restart loop completed (3 stop/start iterations)
    • post-restart status and auth summary remained healthy (idle)
  3. Optional interactive pkcheck loop was intentionally skipped in this run:
    • requires live polkit challenge flow and operator interaction.
  4. Runtime race harness passed for both previously manual checks:
    • active prompt + daemon restart (garcardctl quit)
    • active prompt + SIGTERM
  5. Runtime log evidence (target/garcard-sprint04-runtime.log) confirms:
    • auth request reached active processing before interruption
    • daemon shutdown/termination unregistered cleanly
    • relaunch succeeded with healthy status and auth-summary
  6. Acceptance behavior update (2026-02-24):
    • wrong-password path verified (auth-summary: failure)
    • cancel path verified (auth-summary: canceled)
    • helper diagnostics classification tightened to avoid treating plaintext helper lines as protocol errors
  7. Regression coverage update (2026-02-25):
    • added helper callback-path tests for explicit SUCCESS/FAILURE outcomes.
    • added helper diagnostic-then-success test to guard against false failure signaling on success.
    • added agent-level mocked retry conversation test (first failure, second success) to verify recoverable in-session retry behavior.
    • workspace test baseline now includes 51 garcard tests.
  8. Interactive acceptance closure (2026-02-25):
    • daemon log capture: /tmp/garcard-auth.log.
    • first attempt failed and retried in-session:
      • Received helper protocol line helper_line=FAILURE
      • Authentication denied; retrying prompt ... attempt=1
    • second attempt succeeded:
      • Received helper protocol line helper_line=SUCCESS
      • Completed polkit auth request callback ... outcome=Authorized
    • this confirms recoverable wrong-password behavior and successful-auth completion in one challenge flow.

Hardening Outcomes Confirmed

  1. IPC control path now validates same-UID peer credentials.
  2. Prompt UI runtime path no longer relies on panic/expect for color parsing.
  3. Helper response buffers are scrubbed after sending to helper socket.
  4. Prompt input handling now moves submitted secrets without cloning and scrubs prompt/output buffers after use.
  5. Prompt feedback tones are wired for auth outcomes (success/error), with error flash behavior in built-in prompt mode.
  6. Built-in prompt reuses a persistent modal so auth failure feedback can flash inline and reprompt without window teardown.

Remaining Manual Sprint 04 Checks

  1. None. Interactive success confirmation completed on 2026-02-25.
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1 # Sprint 04 Validation Report (2026-02-20)
2
3 ## Scope
4 1. Hardening regression checks after Sprint 04 code changes.
5 2. Automated reliability checks for daemon restart resilience.
6 3. Runtime race validation for active prompt interruption paths.
7
8 ## Commands
9 1. `cargo test --workspace`
10 2. `./examples/validate-sprint-04.sh` (executed with default `stub` backend)
11 3. `./examples/validate-sprint-04-runtime.sh` (executed with `polkit` backend)
12
13 ## Results
14 1. Workspace tests passed (`41` garcard tests + workspace crates).
15 2. `validate-sprint-04.sh` passed baseline and restart loop checks:
16 - daemon reachable via `ping`/`status`
17 - restart loop completed (`3` stop/start iterations)
18 - post-restart status and auth summary remained healthy (`idle`)
19 3. Optional interactive `pkcheck` loop was intentionally skipped in this run:
20 - requires live polkit challenge flow and operator interaction.
21 4. Runtime race harness passed for both previously manual checks:
22 - active prompt + daemon restart (`garcardctl quit`)
23 - active prompt + `SIGTERM`
24 5. Runtime log evidence (`target/garcard-sprint04-runtime.log`) confirms:
25 - auth request reached active processing before interruption
26 - daemon shutdown/termination unregistered cleanly
27 - relaunch succeeded with healthy `status` and `auth-summary`
28 6. Acceptance behavior update (2026-02-24):
29 - wrong-password path verified (`auth-summary: failure`)
30 - cancel path verified (`auth-summary: canceled`)
31 - helper diagnostics classification tightened to avoid treating plaintext helper lines as protocol errors
32 7. Regression coverage update (2026-02-25):
33 - added helper callback-path tests for explicit `SUCCESS`/`FAILURE` outcomes.
34 - added helper diagnostic-then-success test to guard against false failure signaling on success.
35 - added agent-level mocked retry conversation test (first failure, second success) to verify recoverable in-session retry behavior.
36 - workspace test baseline now includes `51` `garcard` tests.
37 8. Interactive acceptance closure (2026-02-25):
38 - daemon log capture: `/tmp/garcard-auth.log`.
39 - first attempt failed and retried in-session:
40 - `Received helper protocol line helper_line=FAILURE`
41 - `Authentication denied; retrying prompt ... attempt=1`
42 - second attempt succeeded:
43 - `Received helper protocol line helper_line=SUCCESS`
44 - `Completed polkit auth request callback ... outcome=Authorized`
45 - this confirms recoverable wrong-password behavior and successful-auth completion in one challenge flow.
46
47 ## Hardening Outcomes Confirmed
48 1. IPC control path now validates same-UID peer credentials.
49 2. Prompt UI runtime path no longer relies on panic/`expect` for color parsing.
50 3. Helper response buffers are scrubbed after sending to helper socket.
51 4. Prompt input handling now moves submitted secrets without cloning and scrubs prompt/output buffers after use.
52 5. Prompt feedback tones are wired for auth outcomes (success/error), with error flash behavior in built-in prompt mode.
53 6. Built-in prompt reuses a persistent modal so auth failure feedback can flash inline and reprompt without window teardown.
54
55 ## Remaining Manual Sprint 04 Checks
56 1. None. Interactive success confirmation completed on 2026-02-25.