From 9fb187cc8f599b73c0d372ff19f05108eaac0c26 Mon Sep 17 00:00:00 2001 From: Fabro Date: Fri, 20 Mar 2026 19:44:56 -0400 Subject: [PATCH] checkpoint MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ⚒️ Generated with [Fabro](https://fabro.sh) --- checkpoint.json | 46 ++++++++++++++++------ nodes/implement/status.json | 6 +++ nodes/plan/diff.patch | 77 +++++++++++++++++++++++++++++++++++++ 3 files changed, 117 insertions(+), 12 deletions(-) create mode 100644 nodes/implement/status.json create mode 100644 nodes/plan/diff.patch diff --git a/checkpoint.json b/checkpoint.json index 64760e41f..8fc24cbc7 100644 --- a/checkpoint.json +++ b/checkpoint.json @@ -1,30 +1,38 @@ { - "timestamp": "2026-03-20T23:27:47.483031Z", - "current_node": "plan", + "timestamp": "2026-03-20T23:44:56.811200Z", + "current_node": "implement", "completed_nodes": [ "start", - "plan" + "plan", + "implement" ], "node_retries": { "start": 1, - "plan": 1 + "plan": 1, + "implement": 1 }, "context_values": { - "last_stage": "plan", - "current_node": "plan", + "last_stage": "simplify_opus", + "current_node": "implement", "graph.model_stylesheet": "\n * { model: claude-opus-4-6; }\n ", - "current.preamble": "Goal: https://github.com/fabro-sh/fabro/issues/126\n", + "current.preamble": "Goal: https://github.com/fabro-sh/fabro/issues/126\nRun ID: 01KM6S46Q7M6ZV6KP05576W499\nPipeline progress: 1 of 2 stages completed\n\n## Stage: plan\n- Status: success\n- Handler: agent\n- Model: claude-opus-4-6\n- Tokens: 25.0k in / 2.5k out\n- Files touched: /home/daytona/workspace/plan.md\n- Response:\n > The plan has been written to `/home/daytona/workspace/plan.md`.\n > \n > It covers:\n > - **4 files to modify**: `fabro-agent/Cargo.toml` (add `rand` dep), `subagent.rs` (replace UUID with 8-char hex), `cli.rs` (remove 5 `short_id` truncations), `run_progress.rs` (remove 2 `short_id` truncations)\n > - **Step-by-step implementation** with exact line references and before/after code\n > - **Verification commands** to confirm correctness\n > - **Test case analysis** explaining why no test changes are needed\n", "graph.rankdir": "LR", "internal.retry_count.start": 1, - "internal.fidelity": "compact", - "internal.thread_id": "start", + "internal.fidelity": "summary:high", + "internal.thread_id": "plan", "graph.goal": "https://github.com/fabro-sh/fabro/issues/126", "internal.run_id": "01KM6S46Q7M6ZV6KP05576W499", "failure_signature": "", "response.plan": "The plan has been written to `/home/daytona/workspace/plan.md`.\n\nIt covers:\n- **4 files to modify**: `fabro-agent/Cargo.toml` (add `rand` dep), `subagent.rs` (replace UUID with 8-char hex), `cli.rs` (remove 5 `short_id` truncations), `run_progress.rs` (remove 2 `short_id` truncations)\n- **Step-by-step implementation** with exact line references and before/after code\n- **Verification commands** to confirm correctness\n- **Test case analysis** explaining why no test changes are needed", - "last_response": "The plan has been written to `/home/daytona/workspace/plan.md`.\n\nIt covers:\n- **4 files to modify**: `fabro-agent/Cargo.toml` (add `rand` dep), `subagent.rs` (replace UUID with 8-char hex), `cli.rs` (", + "last_response": "The diff is now clean and minimal. Let me summarize the review and cleanup:\n\n## Summary\n\n**Three parallel review agents** examined the changes for code reuse, quality, and efficiency.\n\n### Issues foun", "thread.start.current_node": "plan", + "internal.retry_count.implement": 1, + "command.stderr": "", + "command.output": "", + "response.simplify_opus": "The diff is now clean and minimal. Let me summarize the review and cleanup:\n\n## Summary\n\n**Three parallel review agents** examined the changes for code reuse, quality, and efficiency.\n\n### Issues found and fixed:\n\n1. **Unnecessary `rand` dependency** — The `implement` stage added `rand` to `Cargo.toml` just for `rand::random::()`. But `uuid` was already a dependency (still used in `session.rs`). Fixed by replacing `rand::random::()` with `uuid::Uuid::new_v4().as_fields().0` which extracts the first u32 field from a UUIDv4 — same randomness, zero new dependencies.\n\n2. **Missing trailing newline in Cargo.toml** — The `implement` stage accidentally stripped the trailing newline. This was automatically resolved when the `rand` line was removed, restoring the file to its original state.\n\n### False positives / no-action items:\n- `short_id` in `pr.rs` is for `run_id` (unrelated to subagent IDs) — no change needed\n- Collision risk of 8-hex-char IDs (4B values) is negligible for subagent concurrency\n- The `format!` call on subagent spawn is not a hot path — no concern\n\n### Final state: 3 files changed, 0 new dependencies added\n- `subagent.rs`: UUID → 8-char hex ID using existing `uuid` crate\n- `cli.rs`: 5 `short_id` truncations removed\n- `run_progress.rs`: 2 `short_id` truncations removed", + "thread.plan.current_node": "implement", "internal.node_visit_count": 1, + "response.implement": "All 179 tests pass across the entire workspace. Let me do a final summary of all changes made:\n\n## Summary of changes\n\n**4 files modified** as specified in the plan:\n\n### 1. `lib/crates/fabro-agent/Cargo.toml`\n- Added `rand.workspace = true` dependency (needed for `rand::random::()`)\n\n### 2. `lib/crates/fabro-agent/src/subagent.rs` (line 67)\n- Replaced `uuid::Uuid::new_v4().to_string()` with `format!(\"{:08x}\", rand::random::())`\n- Subagent IDs are now 8-char lowercase hex strings (e.g. `a3f1b20c`) instead of 36-char UUIDs\n\n### 3. `lib/crates/fabro-agent/src/cli.rs` (5 places)\n- Removed all 5 `let short_id = &agent_id[..8.min(agent_id.len())];` truncation lines\n- Replaced `{short_id}` with `{agent_id}` in format strings for: `SubAgentSpawned`, `SubAgentCompleted`, `SubAgentFailed`, `SubAgentClosed`, and `SubAgentEvent` handlers\n\n### 4. `lib/crates/fabro-cli/src/commands/run_progress.rs` (2 places)\n- Removed both `let short_id = &agent_id[..agent_id.len().min(8)];` truncation lines\n- Replaced `{short_id}` with `{agent_id}` in format strings for: `SubAgentSpawned` and `SubAgentCompleted` handlers\n\n**Verification**: `cargo build --workspace` ✅, `cargo test --workspace` (179 passed) ✅, `cargo clippy --workspace -- -D warnings` ✅, `cargo fmt --check --all` ✅", "outcome": "success", "failure_class": "", "internal.retry_count.plan": 1 @@ -56,11 +64,25 @@ "/home/daytona/workspace/plan.md" ], "duration_ms": 88245 + }, + "implement": { + "status": "success", + "context_updates": { + "response.implement": "All 179 tests pass across the entire workspace. Let me do a final summary of all changes made:\n\n## Summary of changes\n\n**4 files modified** as specified in the plan:\n\n### 1. `lib/crates/fabro-agent/Cargo.toml`\n- Added `rand.workspace = true` dependency (needed for `rand::random::()`)\n\n### 2. `lib/crates/fabro-agent/src/subagent.rs` (line 67)\n- Replaced `uuid::Uuid::new_v4().to_string()` with `format!(\"{:08x}\", rand::random::())`\n- Subagent IDs are now 8-char lowercase hex strings (e.g. `a3f1b20c`) instead of 36-char UUIDs\n\n### 3. `lib/crates/fabro-agent/src/cli.rs` (5 places)\n- Removed all 5 `let short_id = &agent_id[..8.min(agent_id.len())];` truncation lines\n- Replaced `{short_id}` with `{agent_id}` in format strings for: `SubAgentSpawned`, `SubAgentCompleted`, `SubAgentFailed`, `SubAgentClosed`, and `SubAgentEvent` handlers\n\n### 4. `lib/crates/fabro-cli/src/commands/run_progress.rs` (2 places)\n- Removed both `let short_id = &agent_id[..agent_id.len().min(8)];` truncation lines\n- Replaced `{short_id}` with `{agent_id}` in format strings for: `SubAgentSpawned` and `SubAgentCompleted` handlers\n\n**Verification**: `cargo build --workspace` ✅, `cargo test --workspace` (179 passed) ✅, `cargo clippy --workspace -- -D warnings` ✅, `cargo fmt --check --all` ✅", + "command.stderr": "", + "last_stage": "simplify_opus", + "last_response": "The diff is now clean and minimal. Let me summarize the review and cleanup:\n\n## Summary\n\n**Three parallel review agents** examined the changes for code reuse, quality, and efficiency.\n\n### Issues foun", + "response.simplify_opus": "The diff is now clean and minimal. Let me summarize the review and cleanup:\n\n## Summary\n\n**Three parallel review agents** examined the changes for code reuse, quality, and efficiency.\n\n### Issues found and fixed:\n\n1. **Unnecessary `rand` dependency** — The `implement` stage added `rand` to `Cargo.toml` just for `rand::random::()`. But `uuid` was already a dependency (still used in `session.rs`). Fixed by replacing `rand::random::()` with `uuid::Uuid::new_v4().as_fields().0` which extracts the first u32 field from a UUIDv4 — same randomness, zero new dependencies.\n\n2. **Missing trailing newline in Cargo.toml** — The `implement` stage accidentally stripped the trailing newline. This was automatically resolved when the `rand` line was removed, restoring the file to its original state.\n\n### False positives / no-action items:\n- `short_id` in `pr.rs` is for `run_id` (unrelated to subagent IDs) — no change needed\n- Collision risk of 8-hex-char IDs (4B values) is negligible for subagent concurrency\n- The `format!` call on subagent spawn is not a hot path — no concern\n\n### Final state: 3 files changed, 0 new dependencies added\n- `subagent.rs`: UUID → 8-char hex ID using existing `uuid` crate\n- `cli.rs`: 5 `short_id` truncations removed\n- `run_progress.rs`: 2 `short_id` truncations removed", + "command.output": "" + }, + "notes": "Child completed at cycle 23", + "duration_ms": 1026808 } }, - "next_node_id": "implement", + "next_node_id": "exit", "node_visits": { "start": 1, - "plan": 1 + "plan": 1, + "implement": 1 } } \ No newline at end of file diff --git a/nodes/implement/status.json b/nodes/implement/status.json new file mode 100644 index 000000000..7cf22938d --- /dev/null +++ b/nodes/implement/status.json @@ -0,0 +1,6 @@ +{ + "status": "success", + "notes": "Child completed at cycle 23", + "failure_reason": null, + "timestamp": "2026-03-20T23:44:56.810839+00:00" +} \ No newline at end of file diff --git a/nodes/plan/diff.patch b/nodes/plan/diff.patch new file mode 100644 index 000000000..664c50b25 --- /dev/null +++ b/nodes/plan/diff.patch @@ -0,0 +1,77 @@ +diff --git a/plan.md b/plan.md +new file mode 100644 +index 00000000..45c8811e +--- /dev/null ++++ b/plan.md +@@ -0,0 +1,71 @@ ++# Plan: Use short hex IDs for subagents instead of UUIDs ++ ++## Summary ++ ++GitHub issue #126: Subagent IDs are currently full UUID v4 strings (36 chars, e.g. `550e8400-e29b-41d4-a716-446655440000`). These are verbose in CLI output and error-prone when referenced by the LLM in tools like `send_input`, `wait`, and `close_agent`. The codebase already truncates agent IDs to 8 chars for display in multiple places. This change replaces UUID generation with a random 8-char hex string (e.g. `a3f1b20c`) so the full ID matches what's already displayed. ++ ++## Files to modify ++ ++### 1. `lib/crates/fabro-agent/Cargo.toml` ++- Add `rand.workspace = true` to `[dependencies]`. (`rand = "0.8"` is already defined in workspace root `Cargo.toml`; other crates like `fabro-cli`, `fabro-llm`, `fabro-workflows` already use it.) ++- Do **not** remove `uuid.workspace = true` — it's still used in `session.rs:58` for session IDs. ++ ++### 2. `lib/crates/fabro-agent/src/subagent.rs` ++- **Line 67**: Replace `uuid::Uuid::new_v4().to_string()` with `format!("{:08x}", rand::random::())`. ++- This generates 8-char lowercase hex strings with ~4 billion possible values — collision-free within a session. ++ ++### 3. `lib/crates/fabro-agent/src/cli.rs` ++Remove the `short_id` truncation pattern in 5 places. Since IDs are now 8 chars, `short_id == agent_id`, so use `agent_id` directly: ++ ++- **Line 542** (`SubAgentSpawned` handler): Remove `let short_id = &agent_id[..8.min(agent_id.len())];` and replace `{short_id}` with `{agent_id}` in the format string. ++- **Line 561** (`SubAgentCompleted` handler): Same removal and replacement. ++- **Line 574** (`SubAgentFailed` handler): Same removal and replacement. ++- **Line 583** (`SubAgentClosed` handler): Same removal and replacement. ++- **Line 596** (`SubAgentEvent` handler, verbose mode): Same removal and replacement. ++ ++### 4. `lib/crates/fabro-cli/src/commands/run_progress.rs` ++Remove the `short_id` truncation pattern in 2 places: ++ ++- **Line 1416** (`SubAgentSpawned` handler): Remove `let short_id = &agent_id[..agent_id.len().min(8)];` and replace `{short_id}` with `{agent_id}` in the format string. ++- **Line 1432** (`SubAgentCompleted` handler): Same removal and replacement. ++ ++## Step-by-step implementation ++ ++1. **Add `rand` dependency to `fabro-agent`**: ++ In `lib/crates/fabro-agent/Cargo.toml`, add `rand.workspace = true` to the `[dependencies]` section (e.g. after the `uuid.workspace = true` line). ++ ++2. **Replace UUID generation in `subagent.rs`**: ++ In `lib/crates/fabro-agent/src/subagent.rs` line 67, change: ++ ```rust ++ let agent_id = uuid::Uuid::new_v4().to_string(); ++ ``` ++ to: ++ ```rust ++ let agent_id = format!("{:08x}", rand::random::()); ++ ``` ++ ++3. **Remove `short_id` truncation in `cli.rs`**: ++ In `lib/crates/fabro-agent/src/cli.rs`, for each of the 5 occurrences of `let short_id = &agent_id[..8.min(agent_id.len())];` (lines 542, 561, 574, 583, 596): ++ - Delete the `let short_id = ...` line. ++ - Replace `{short_id}` with `{agent_id}` in the corresponding format string on the same match arm. ++ ++4. **Remove `short_id` truncation in `run_progress.rs`**: ++ In `lib/crates/fabro-cli/src/commands/run_progress.rs`, for each of the 2 occurrences of `let short_id = &agent_id[..agent_id.len().min(8)];` (lines 1416, 1432): ++ - Delete the `let short_id = ...` line. ++ - Replace `{short_id}` with `{agent_id}` in the corresponding format string. ++ ++## Verification ++ ++- `cargo build --workspace` — clean build with no errors. ++- `cargo test -p fabro-agent` — all existing subagent tests pass. Tests use hardcoded IDs like `"sa-1"`, not UUIDs, so no test changes needed. ++- `cargo clippy --workspace -- -D warnings` — no new warnings. ++- `cargo fmt --check --all` — formatting is clean. ++ ++## Test cases ++ ++No new test cases are needed. The existing tests in `subagent.rs` (e.g. `spawn_creates_agent_and_returns_id`) already verify that: ++- `agent_id` is non-empty ++- The agent can be looked up by its ID ++- Spawn/wait/close/send_input work with the generated IDs ++ ++The generated IDs will now be 8 chars instead of 36, but the tests don't assert on length or format, so they pass unchanged.