# TP-018-delete-mode-safety-gate: TP-018-delete-mode-safety-gate — Status

**Current Step:** Step 6: Verify
**Status:** ✅ Complete
**Last Updated:** 2026-05-13
**Review Level:** 0
**Review Counter:** 0
**Iteration:** 1
**Size:** M

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### Step 1: Define the mode enum and parsing

**Status:** ✅ Complete

- [x] Enum: `safe` (default — writes allowed, deletes forbidden), `full` (writes + deletes), `none` (read-only; no write or delete tools registered)
- [x] Env-var parsing case-insensitive; unknown / empty → `safe`; log the resolved mode once at startup at INFO
- [x] Reject `confirm`-style per-call arguments at design time — the package exposes no helper for them

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### Step 2: Capability API

**Status:** ✅ Complete

- [x] `safety.Capability` with `CanDelete() bool`, `CanWrite() bool`, `Mode() string`
- [x] Single source of truth read once at startup; safe for concurrent reads
- [x] Test matrix: every (mode × capability) pair

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### Step 3: Registry filtering

**Status:** ✅ Complete

- [x] Tool registration takes a `safety.Capability`; destructive tools self-declare `RequiresDelete()` / `RequiresWrite()`
- [x] Tools whose requirement the mode forbids are **not** registered (not registered-and-erroring — absent from the catalog entirely)
- [x] Log a single INFO line at startup listing registered/skipped tool counts; never log tool names that could leak roadmap state — counts only

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### Step 4: `_meta` surfacing

**Status:** ✅ Complete

- [x] Add `_meta.delete_mode` to every response from a single chokepoint in `internal/response`
- [x] No per-call override; mode is process-global

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### Step 5: Docs + CLAUDE.md update

**Status:** ✅ Complete

- [x] README: a short section documenting `ICUVISOR_DELETE_MODE` with the three modes and the default
- [x] CLAUDE.md: replace the per-call `confirm: true` rule with the registration-time gate rule; cross-link to `internal/safety`
- [x] CHANGELOG `[Unreleased]` entry

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### Step 6: Verify

**Status:** ✅ Complete

- [x] `make test`, `make build`, `make lint`, `go test -race ./...`
- [x] Manual: start the binary in each of `safe`, `full`, `none`; confirm the registered-tool count in logs and via `tools/list` if a smoke harness exists

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## Reviews

| #   | Type | Step | Verdict | File |
| --- | ---- | ---- | ------- | ---- |

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## Discoveries

| Discovery | Disposition | Location |
| --------- | ----------- | -------- |

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## Execution Log

| Timestamp        | Action         | Outcome                                 |
| ---------------- | -------------- | --------------------------------------- |
| 2026-05-13       | Task staged    | STATUS.md auto-generated by task-runner |
| 2026-05-13 12:21 | Task started   | Runtime V2 lane-runner execution        |
| 2026-05-13 12:21 | Step 1 started | Define the mode enum and parsing        |
| 2026-05-13 12:44 | Worker iter 1 | done in 1350s, tools: 124 |
| 2026-05-13 12:44 | Task complete | .DONE created |

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## Blockers

_None_

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## Notes

_Reserved for execution notes_
