diff --git a/README.md b/README.md
index 630f2cf..1a532d1 100644
--- a/README.md
+++ b/README.md
@@ -118,8 +118,11 @@ isq issue list --tree                    # Tree view with indentation
 isq issue list --flat                    # Flat list including all sub-issues
 isq issue list --children-of 42          # Children of issue #42
 
-# Create, comment, close
+# Create, edit, comment, close
 isq issue create --title "Fix login bug"
+isq issue edit 423 --title "Fix login bug (network timeout)"
+isq issue edit 423 --body - < findings.md      # Read body from stdin
+isq issue update 423 --title "..."             # Alias for edit
 isq issue comment 423 "Fixed in abc123"
 isq issue close 423
 
@@ -180,6 +183,7 @@ Cleared issue #891 association
 | `isq issue list` | List issues (`--label`, `--state`, `--mine`, `--tree`, `--flat`, `--children-of`) |
 | `isq issue show <id>` | Show issue details |
 | `isq issue create --title "..."` | Create new issue |
+| `isq issue edit <id> [--title] [--body] [--priority]` | Edit mutable fields (`update` alias) |
 | `isq issue comment <id> "..."` | Add comment |
 | `isq issue close <id>` | Close issue |
 | `isq issue reopen <id>` | Reopen issue |
@@ -199,6 +203,11 @@ Cleared issue #891 association
 
 Add `--json` to any command for machine-readable output.
 
+`isq issue edit` notes:
+- `--body -` reads from stdin (same pattern as create/comment piping)
+- `--priority` uses `0=urgent, 1=high, 2=medium, 3=low, 4=none`
+- Priority updates are supported on Linear; JIRA supports `0..3`; GitHub priority should be managed via labels
+
 ## Views (Saved Filters)
 
 Create named filter combinations to avoid typing the same flags repeatedly:
diff --git a/V1_TEST_PLAN.md b/V1_TEST_PLAN.md
deleted file mode 100644
index 9f1f1bf..0000000
--- a/V1_TEST_PLAN.md
+++ /dev/null
@@ -1,586 +0,0 @@
-# isq V1 Test Plan
-
-**Target Release**: ~Feb 1
-**Goal**: Production-ready CLI for daily use without bugs
-
----
-
-## Pre-Test Setup
-
-```bash
-# Build release binary
-cargo build --release
-
-# Run lint checks
-scripts/lint.sh --ci
-
-# Run all unit tests
-cargo test
-```
-
----
-
-## 1. Installation & Updates
-
-### 1.1 Fresh Install
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 1.1.1 | macOS/Linux install | `curl -LsSf https://cameronwestland.com/isq/install.sh \| sh` | Binary installed, PATH configured |
-| 1.1.2 | Version check | `isq --version` | Version number displayed |
-| 1.1.3 | Help available | `isq --help` | All commands listed |
-
-### 1.2 Update Flow
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 1.2.1 | Check for updates | `isq update check` | Shows current vs latest version |
-| 1.2.2 | Check JSON output | `isq update check --json` | Valid JSON with version info |
-| 1.2.3 | Install update | `isq update install` | Downloads and installs new version |
-
-### 1.3 Uninstall
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 1.3.1 | Dry run | `isq uninstall --dry-run` | Shows what would be removed |
-| 1.3.2 | Keep config | `isq uninstall --keep-config` | Removes binary/cache, keeps config |
-| 1.3.3 | Full uninstall | `isq uninstall -y` | Removes all isq files |
-
----
-
-## 2. Authentication
-
-### 2.1 GitHub
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 2.1.1 | OAuth login | `isq link github` (new user) | Opens browser, completes OAuth |
-| 2.1.2 | PAT fallback | `isq link github` (no browser) | Prompts for PAT |
-| 2.1.3 | gh CLI token reuse | Have `gh` auth'd, run `isq link github` | Detects and offers to use gh token |
-| 2.1.4 | Logout | `isq logout github` | Removes stored credentials |
-| 2.1.5 | Re-auth | `isq link github` after logout | Can re-authenticate |
-
-### 2.2 Linear
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 2.2.1 | OAuth PKCE | `isq link linear` | Opens browser, completes OAuth |
-| 2.2.2 | API key auth | `isq link linear` (select API key) | Prompts for API key |
-| 2.2.3 | Logout | `isq logout linear` | Removes stored credentials |
-
-### 2.3 JIRA Cloud
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 2.3.1 | OAuth PKCE | `isq link jira` | Opens browser, completes OAuth |
-| 2.3.2 | API token auth | `isq link jira` (select API token) | Prompts for email + token |
-| 2.3.3 | List projects | `isq link jira -o list-projects` | Shows available projects |
-| 2.3.4 | Link project | `isq link jira -o project=MYPROJ` | Links to specific project |
-| 2.3.5 | Logout | `isq logout jira` | Removes stored credentials |
-
----
-
-## 3. Repo Linking
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 3.1 | Link repo | `isq link github` (in git repo) | Repo linked, commit hook installed |
-| 3.2 | Status check | `isq status` | Shows linked forge, auth status, sync health |
-| 3.3 | Unlink | `isq unlink` | Removes link and commit hook |
-| 3.4 | Link non-repo | `isq link github` (not in git repo) | Clear error message |
-| 3.5 | Multiple forges | Link GitHub in repo1, Linear in repo2, verify independent | Each repo maintains separate link |
-
----
-
-## 4. Issue Operations
-
-### 4.1 Listing Issues
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 4.1.1 | Basic list | `isq issue list` | Shows issues (instant from cache) |
-| 4.1.2 | Filter by state | `isq issue list --state=open` | Only open issues |
-| 4.1.3 | Filter by state closed | `isq issue list --state=closed` | Only closed issues |
-| 4.1.4 | Filter by label | `isq issue list --label=bug` | Only issues with "bug" label |
-| 4.1.5 | Multiple labels | `isq issue list --label=bug --label=p0` | Issues with both labels |
-| 4.1.6 | My issues | `isq issue list --mine` | Only issues assigned to me |
-| 4.1.7 | Specific IDs | `isq issue list --id 7,12,45` | Only issues #7, #12, #45 |
-| 4.1.8 | Sort by priority | `isq issue list --sort priority` | Priority-ordered (default) |
-| 4.1.9 | Sort by newest | `isq issue list --sort newest` | Newest first |
-| 4.1.10 | Sort by oldest | `isq issue list --sort oldest` | Oldest first |
-| 4.1.11 | Sort by updated | `isq issue list --sort updated` | Most recently updated first |
-| 4.1.12 | JSON output | `isq issue list --json` | Valid parseable JSON |
-
-### 4.2 Issue Hierarchy
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 4.2.1 | Default (root only) | `isq issue list` (when sub-issues exist) | Shows only root issues |
-| 4.2.2 | Tree view | `isq issue list --tree` | Shows hierarchy with indentation |
-| 4.2.3 | Flat view | `isq issue list --flat` | Shows all issues including sub-issues |
-| 4.2.4 | Children of | `isq issue list --children-of 42` | Shows children of issue #42 |
-
-### 4.3 Show Issue
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 4.3.1 | Show issue | `isq issue show 123` | Displays issue details |
-| 4.3.2 | Show JSON | `isq issue show 123 --json` | Valid JSON output |
-| 4.3.3 | Non-existent issue | `isq issue show 999999` | Clear error message |
-
-### 4.4 Create Issue
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 4.4.1 | Basic create | `isq issue create --title "Test issue"` | Issue created, ID returned |
-| 4.4.2 | With body | `isq issue create --title "Test" --body "Description"` | Issue with body created |
-| 4.4.3 | With label | `isq issue create --title "Bug" --label bug` | Issue with label created |
-| 4.4.4 | With parent | `isq issue create --title "Subtask" --parent 42` | Sub-issue created |
-| 4.4.5 | Pipe content | `echo "Body text" \| isq issue create --title "Test"` | Body from stdin |
-| 4.4.6 | JSON output | `isq issue create --title "Test" --json` | Returns JSON with issue data |
-
-### 4.5 Comment
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 4.5.1 | Add comment | `isq issue comment 123 "Test comment"` | Comment added |
-| 4.5.2 | Pipe comment | `echo "Comment text" \| isq issue comment 123` | Comment from stdin |
-| 4.5.3 | JSON output | `isq issue comment 123 "Test" --json` | Returns JSON with comment data |
-
-### 4.6 State Changes
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 4.6.1 | Close issue | `isq issue close 123` | Issue closed |
-| 4.6.2 | Reopen issue | `isq issue reopen 123` | Issue reopened |
-| 4.6.3 | Close JSON | `isq issue close 123 --json` | Returns JSON |
-
-### 4.7 Labels
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 4.7.1 | Add label | `isq issue label 123 add bug` | Label added |
-| 4.7.2 | Remove label | `isq issue label 123 remove bug` | Label removed |
-| 4.7.3 | Non-existent label | `isq issue label 123 add nonexistent` | Clear error message |
-
-### 4.8 Assignment
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 4.8.1 | Assign user | `isq issue assign 123 username` | Issue assigned |
-| 4.8.2 | Unassign | `isq issue assign 123 ""` | Issue unassigned |
-
----
-
-## 5. Labels
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 5.1 | List labels | `isq label list` | Shows all repo labels |
-| 5.2 | List JSON | `isq label list --json` | Valid JSON output |
-| 5.3 | Create label | `isq label create test-label --color ff0000` | Label created |
-| 5.4 | Create with desc | `isq label create test-label --description "Test"` | Label with description |
-
----
-
-## 6. Goals (Milestones/Projects)
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 6.1 | List goals | `isq goal list` | Shows milestones/projects |
-| 6.2 | List open | `isq goal list --state=open` | Only open goals |
-| 6.3 | Show goal | `isq goal show "Q1 Release"` | Goal details |
-| 6.4 | Create goal | `isq goal create "Q2 Release" --target "2024-06-30"` | Goal created |
-| 6.5 | Assign issue | `isq goal assign 123 "Q2 Release"` | Issue assigned to goal |
-| 6.6 | Close goal | `isq goal close "Q1 Release"` | Goal closed |
-| 6.7 | JSON output | `isq goal list --json` | Valid JSON |
-
----
-
-## 7. Views (Saved Filters)
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 7.1 | Create view | `isq view create my-bugs --label=bug --state=open --mine` | View saved |
-| 7.2 | List views | `isq view list` | Shows all saved views |
-| 7.3 | Use view | `isq issue list @my-bugs` | Applies saved filters |
-| 7.4 | View + override | `isq issue list @my-bugs --state=closed` | Override view settings |
-| 7.5 | Create hierarchy view | `isq view create epics --root-only` | View saved |
-| 7.6 | Create tree view | `isq view create hierarchy --tree` | View saved |
-| 7.7 | Delete view | `isq view delete my-bugs` | View removed |
-| 7.8 | View JSON | `isq view list --json` | Valid JSON |
-
----
-
-## 8. Development Workflow (Worktrees)
-
-### 8.1 Start Flow
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 8.1.1 | Start issue | `isq start 123` | Worktree created, branch created |
-| 8.1.2 | Branch naming | Check branch name after start | Format: `123-slugified-title` |
-| 8.1.3 | Setup script | `.config/isq.toml` with setup command | Setup script executes |
-| 8.1.4 | on_start labels | Config with `add_labels = ["in progress"]` | Label added on start |
-| 8.1.5 | on_start assign | Config with `assign_self = true` | Assigned to current user |
-
-### 8.2 Current Issue
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 8.2.1 | Show current | `isq` (in worktree) | Shows current issue + context |
-| 8.2.2 | Current ID | `isq current` | Prints just the issue ID |
-| 8.2.3 | Current quiet | `isq current --quiet` | Prints ID, no error if none |
-| 8.2.4 | No current | `isq current` (not in worktree) | Clear error message |
-
-### 8.3 Cleanup Flow
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 8.3.1 | Cleanup | `isq cleanup` | Worktree removed, association cleared |
-| 8.3.2 | Cleanup keep | `isq cleanup --keep` | Preserves worktree directory |
-| 8.3.3 | on_cleanup labels | Config with `remove_labels = ["in progress"]` | Label removed |
-| 8.3.4 | on_cleanup transition | Linear/JIRA config with `transition = "backlog"` | Issue transitioned |
-
----
-
-## 9. Sync & Daemon
-
-### 9.1 Manual Sync
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 9.1.1 | Manual sync | `isq sync` | Issues synced from forge |
-| 9.1.2 | Sync quiet | `isq sync --quiet` | No output on success |
-| 9.1.3 | Sync progress | `isq sync` | Shows sync progress |
-
-### 9.2 Daemon Control
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 9.2.1 | Daemon status | `isq daemon status` | Shows running state, watched repos |
-| 9.2.2 | Daemon start | `isq daemon start` | Daemon starts |
-| 9.2.3 | Daemon stop | `isq daemon stop` | Daemon stops gracefully |
-| 9.2.4 | Daemon logs | `isq daemon logs -n 50` | Shows recent logs |
-| 9.2.5 | Daemon logs follow | `isq daemon logs -f` | Tails logs |
-| 9.2.6 | Watch repo | `isq daemon watch` | Repo added to watch list |
-| 9.2.7 | Unwatch repo | `isq daemon unwatch` | Repo removed from watch list |
-| 9.2.8 | Single instance | Start daemon twice | Second attempt recognizes existing |
-
----
-
-## 10. Diagnostics
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 10.1 | Status overview | `isq status` | Shows auth, daemon, sync health |
-| 10.2 | Doctor all | `isq doctor` | Runs all diagnostic checks |
-| 10.3 | Doctor auth | `isq doctor --check=auth` | Checks authentication |
-| 10.4 | Doctor repo | `isq doctor --check=repo` | Checks repo link |
-| 10.5 | Doctor sync | `isq doctor --check=sync` | Checks sync state |
-| 10.6 | Doctor database | `isq doctor --check=database` | Checks SQLite integrity |
-| 10.7 | Doctor network | `isq doctor --check=network` | Checks API connectivity |
-| 10.8 | Doctor service | `isq doctor --check=service` | Checks daemon status |
-| 10.9 | Doctor install | `isq doctor --check=install` | Checks installation |
-
----
-
-## 11. Offline Behavior
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 11.1 | Read offline | Disconnect network, `isq issue list` | Works from cache |
-| 11.2 | Write offline | Disconnect, `isq issue comment 123 "Test"` | Queued locally |
-| 11.3 | Sync on reconnect | Reconnect, `isq sync` | Pending ops applied |
-| 11.4 | Offline status | `isq status` (offline) | Shows offline state |
-
----
-
-## 12. Cross-Forge Consistency
-
-Run these tests on each forge (GitHub, Linear, JIRA):
-
-| # | Test | Command | GitHub | Linear | JIRA |
-|---|------|---------|--------|--------|------|
-| 12.1 | Link | `isq link <forge>` | [ ] | [ ] | [ ] |
-| 12.2 | List issues | `isq issue list` | [ ] | [ ] | [ ] |
-| 12.3 | Create issue | `isq issue create --title "Test"` | [ ] | [ ] | [ ] |
-| 12.4 | Add comment | `isq issue comment <id> "Test"` | [ ] | [ ] | [ ] |
-| 12.5 | Close issue | `isq issue close <id>` | [ ] | [ ] | [ ] |
-| 12.6 | Reopen issue | `isq issue reopen <id>` | [ ] | [ ] | [ ] |
-| 12.7 | Add label | `isq issue label <id> add <label>` | [ ] | [ ] | [ ] |
-| 12.8 | Assign | `isq issue assign <id> <user>` | [ ] | [ ] | [ ] |
-| 12.9 | Goals | `isq goal list` | [ ] | [ ] | [ ] |
-| 12.10 | Priority sort | `isq issue list --sort priority` | [ ] | [ ] | [ ] |
-| 12.11 | Hierarchy | `isq issue list --tree` | [ ] | [ ] | [ ] |
-| 12.12 | JSON output | `isq issue list --json` | [ ] | [ ] | [ ] |
-| 12.13 | Worktree start | `isq start <id>` | [ ] | [ ] | [ ] |
-| 12.14 | Cleanup | `isq cleanup` | [ ] | [ ] | [ ] |
-
----
-
-## 13. JSON Output Validation
-
-| # | Test | Command | Validation |
-|---|------|---------|------------|
-| 13.1 | Issue list | `isq issue list --json \| jq .` | Valid JSON, array of issues |
-| 13.2 | Issue show | `isq issue show 123 --json \| jq .` | Valid JSON, issue object |
-| 13.3 | Issue create | `isq issue create --title "Test" --json \| jq .id` | Returns created issue ID |
-| 13.4 | Comment | `isq issue comment 123 "Test" --json \| jq .` | Valid JSON, comment object |
-| 13.5 | Goal list | `isq goal list --json \| jq .` | Valid JSON, array |
-| 13.6 | View list | `isq view list --json \| jq .` | Valid JSON, array |
-| 13.7 | Status | `isq status --json \| jq .` | Valid JSON |
-| 13.8 | Update check | `isq update check --json \| jq .` | Valid JSON with versions |
-
----
-
-## 14. Error Handling
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 14.1 | No link | `isq issue list` (unlinked repo) | "Run `isq link` first" |
-| 14.2 | Invalid issue | `isq issue show 999999999` | "Issue not found" |
-| 14.3 | Invalid label | `isq issue label 123 add nonexistent` | Clear error message |
-| 14.4 | Network error | Disconnect during sync | Graceful error, can retry |
-| 14.5 | Auth expired | Invalidate token, run command | Prompts to re-auth |
-| 14.6 | Rate limited | Trigger rate limit | Backs off, informs user |
-| 14.7 | Invalid view | `isq issue list @nonexistent` | "View not found" |
-
----
-
-## 15. Performance
-
-| # | Test | Command | Target |
-|---|------|---------|--------|
-| 15.1 | Cold list | `time isq issue list` (first run after sync) | <100ms |
-| 15.2 | Warm list | `time isq issue list` (subsequent) | <50ms |
-| 15.3 | Large repo | List 1000+ issues | <200ms |
-| 15.4 | JSON output | `time isq issue list --json` | <100ms |
-
----
-
-## 16. Configuration
-
-### 16.1 Per-Repo Config (`.config/isq.toml`)
-
-| # | Test | Config | Expected |
-|---|------|--------|----------|
-| 16.1.1 | Worktree setup | `[worktree] setup = "npm install"` | Script runs on `isq start` |
-| 16.1.2 | on_start labels | `[on_start] add_labels = ["wip"]` | Label added |
-| 16.1.3 | on_start assign | `[on_start] assign_self = true` | Self-assigned |
-| 16.1.4 | on_cleanup labels | `[on_cleanup] remove_labels = ["wip"]` | Label removed |
-| 16.1.5 | Priority mapping | `[priority] P0 = 0` | GitHub labels mapped to priority |
-| 16.1.6 | Invalid config | Malformed TOML | Clear error message |
-
-### 16.2 User Config (`~/.config/isq/config.toml`)
-
-| # | Test | Config | Expected |
-|---|------|--------|----------|
-| 16.2.1 | Default JSON | `[defaults] json = true` | All commands output JSON |
-| 16.2.2 | Saved views | `[views.my-bugs]` | View accessible via @my-bugs |
-
----
-
-## 17. JIRA-Specific Tests
-
-| # | Test | Command / Steps | Expected |
-|---|------|-----------------|----------|
-| 17.1 | List fields | `isq forge jira list-fields` | Shows available JIRA fields |
-| 17.2 | Custom fields | Create issue with custom field | Field populated correctly |
-| 17.3 | ADF conversion | Create issue with markdown body | Converted to JIRA format |
-| 17.4 | Workflow transitions | `isq start` with JIRA transition config | Issue transitioned |
-
----
-
-## 18. Security
-
-| # | Test | Steps | Expected |
-|---|------|-------|----------|
-| 18.1 | Credentials stored | Check credential storage location | Encrypted/protected file |
-| 18.2 | No secrets in logs | Run commands, check daemon logs | No tokens/passwords visible |
-| 18.3 | OAuth PKCE | Monitor auth flow | PKCE code verifier used |
-
----
-
-## 19. Edge Cases
-
-| # | Test | Steps | Expected |
-|---|------|-------|----------|
-| 19.1 | Unicode in title | Create issue with emoji/unicode title | Handled correctly |
-| 19.2 | Long title | Create issue with 500+ char title | Truncated or error |
-| 19.3 | Empty body | `isq issue create --title "Test" --body ""` | Works correctly |
-| 19.4 | Special chars | Create issue with `<script>` in title | Escaped/safe |
-| 19.5 | Concurrent ops | Multiple `isq` commands simultaneously | No data corruption |
-| 19.6 | Large comment | `isq issue comment <id>` with 10KB text | Handled correctly |
-
----
-
-## 20. Cross-Platform Testing
-
-### 20.1 Platform Matrix
-
-Run core tests on each platform:
-
-| # | Test | macOS (Intel) | macOS (ARM) | Linux (x64) | Linux (ARM) |
-|---|------|---------------|-------------|-------------|-------------|
-| 20.1.1 | Install script | [ ] | [ ] | [ ] | [ ] |
-| 20.1.2 | `isq --version` | [ ] | [ ] | [ ] | [ ] |
-| 20.1.3 | `isq link github` | [ ] | [ ] | [ ] | [ ] |
-| 20.1.4 | `isq issue list` | [ ] | [ ] | [ ] | [ ] |
-| 20.1.5 | `isq issue create` | [ ] | [ ] | [ ] | [ ] |
-| 20.1.6 | `isq start <id>` | [ ] | [ ] | [ ] | [ ] |
-| 20.1.7 | `isq sync` | [ ] | [ ] | [ ] | [ ] |
-| 20.1.8 | Daemon runs | [ ] | [ ] | [ ] | [ ] |
-| 20.1.9 | `isq update install` | [ ] | [ ] | [ ] | [ ] |
-| 20.1.10 | `isq uninstall` | [ ] | [ ] | [ ] | [ ] |
-
-### 20.2 Platform-Specific Paths
-
-| # | Platform | Cache Path | Config Path | Verification |
-|---|----------|------------|-------------|--------------|
-| 20.2.1 | macOS | `~/Library/Caches/isq/` | `~/.config/isq/` | [ ] Correct |
-| 20.2.2 | Linux | `~/.cache/isq/` | `~/.config/isq/` | [ ] Correct |
-
-### 20.3 Installation Scenarios
-
-| # | Test | Platform | Steps | Expected |
-|---|------|----------|-------|----------|
-| 20.3.1 | Install to /usr/local/bin | macOS/Linux | Run install with write access | Installed to /usr/local/bin |
-| 20.3.2 | Fallback to ~/.local/bin | macOS/Linux | Run install without /usr/local/bin write | Installed to ~/.local/bin |
-| 20.3.3 | PATH warning | macOS/Linux | Install to ~/.local/bin not in PATH | Warning with instructions |
-| 20.3.4 | ARM binary | macOS M1/M2/M3 | `file $(which isq)` | arm64 architecture |
-| 20.3.5 | Intel binary | macOS Intel | `file $(which isq)` | x86_64 architecture |
-
-### 20.4 OAuth Browser Opening
-
-| # | Test | Platform | Steps | Expected |
-|---|------|----------|-------|----------|
-| 20.4.1 | Browser opens | macOS | `isq link github` | Opens default browser |
-| 20.4.2 | Browser opens | Linux (Desktop) | `isq link github` | Opens via xdg-open |
-| 20.4.3 | No display (SSH) | Linux headless | `isq link github` | Falls back to PAT/manual URL |
-
-### 20.5 Credential Storage
-
-| # | Test | Platform | Verification | Expected |
-|---|------|----------|--------------|----------|
-| 20.5.1 | Keychain | macOS | `security find-generic-password -s isq` | Stored in Keychain |
-| 20.5.2 | Secret Service | Linux (GNOME) | Check via seahorse/secret-tool | Stored in keyring |
-| 20.5.3 | Fallback file | Linux (no keyring) | Check `~/.config/isq/` | Encrypted file with warning |
-
-### 20.6 Shell Integration
-
-| # | Test | Shell | Steps | Expected |
-|---|------|-------|-------|----------|
-| 20.6.1 | Bash completion | Bash | Source completions, test tab | Commands complete |
-| 20.6.2 | Zsh completion | Zsh | Source completions, test tab | Commands complete |
-| 20.6.3 | Fish completion | Fish | Test tab completion | Commands complete |
-| 20.6.4 | Pipe stdin | Bash | `echo "body" \| isq issue create --title "T"` | Works |
-
-### 20.7 File Path Handling
-
-| # | Test | Platform | Steps | Expected |
-|---|------|----------|-------|----------|
-| 20.7.1 | Spaces in path | All | Clone repo to "My Projects/repo" | Works correctly |
-| 20.7.2 | Unicode path | All | Clone repo to path with émojis/中文 | Works correctly |
-| 20.7.3 | Symlinked repo | macOS/Linux | Repo in symlinked directory | Resolves correctly |
-| 20.7.4 | Case sensitivity | macOS (APFS) | Mixed case paths | Handled correctly |
-
-### 20.8 Daemon Platform Behavior
-
-| # | Test | Platform | Steps | Expected |
-|---|------|----------|-------|----------|
-| 20.8.1 | Auto-start | macOS | Login after install | Daemon starts via launchd |
-| 20.8.2 | Auto-start | Linux | Login after install | Daemon starts via systemd user |
-| 20.8.3 | Survives sleep | macOS | Sleep/wake cycle | Daemon reconnects |
-| 20.8.4 | Log location | macOS | `isq daemon logs` | Reads from correct location |
-| 20.8.5 | Log location | Linux | `isq daemon logs` | Reads from correct location |
-
-### 20.9 Git Worktree Cross-Platform
-
-| # | Test | Platform | Steps | Expected |
-|---|------|----------|-------|----------|
-| 20.9.1 | Worktree creation | All | `isq start 123` | Worktree created |
-| 20.9.2 | Branch naming | All | Check branch after start | Valid branch name |
-| 20.9.3 | Setup script | macOS/Linux | `.config/isq.toml` with sh script | Executes correctly |
-| 20.9.4 | Path with spaces | All | Worktree path has spaces | Works correctly |
-
-### 20.10 Linux Distribution Testing
-
-| # | Distro | Install | Auth | Core Ops | Daemon |
-|---|--------|---------|------|----------|--------|
-| 20.10.1 | Ubuntu 22.04 | [ ] | [ ] | [ ] | [ ] |
-| 20.10.2 | Ubuntu 24.04 | [ ] | [ ] | [ ] | [ ] |
-| 20.10.3 | Debian 12 | [ ] | [ ] | [ ] | [ ] |
-| 20.10.4 | Fedora 39+ | [ ] | [ ] | [ ] | [ ] |
-| 20.10.5 | Arch Linux | [ ] | [ ] | [ ] | [ ] |
-| 20.10.6 | Alpine (musl) | [ ] | [ ] | [ ] | [ ] |
-| 20.10.7 | RHEL/Rocky 9 | [ ] | [ ] | [ ] | [ ] |
-
-### 20.11 Terminal Emulator Compatibility
-
-| # | Test | Terminal | Steps | Expected |
-|---|------|----------|-------|----------|
-| 20.11.1 | Color output | macOS Terminal | `isq issue list` | Colors render |
-| 20.11.2 | Color output | iTerm2 | `isq issue list` | Colors render |
-| 20.11.3 | Color output | GNOME Terminal | `isq issue list` | Colors render |
-| 20.11.4 | NO_COLOR | All | `NO_COLOR=1 isq issue list` | No ANSI codes |
-| 20.11.5 | Piped output | All | `isq issue list \| cat` | No ANSI codes |
-| 20.11.6 | Unicode output | All | Issue with emoji in title | Renders correctly |
-| 20.11.7 | Narrow terminal | All | 40-column terminal | Wraps/truncates gracefully |
-
-### 20.12 CI/Container Environments
-
-| # | Test | Environment | Steps | Expected |
-|---|------|-------------|-------|----------|
-| 20.12.1 | GitHub Actions | ubuntu-latest | Run isq commands | Works headless |
-| 20.12.2 | GitHub Actions | macos-latest | Run isq commands | Works |
-| 20.12.3 | Docker | Alpine container | Run isq commands | Works |
-| 20.12.4 | Docker | Debian container | Run isq commands | Works |
-| 20.12.5 | No TTY | `echo "y" \| isq uninstall` | Non-interactive mode | Works |
-
----
-
-## Sign-Off Checklist
-
-### Build & Lint
-- [ ] `cargo build --release` passes
-- [ ] `cargo test` all tests pass
-- [ ] `scripts/lint.sh --ci` passes
-- [ ] No compiler warnings
-
-### Core Functionality
-- [ ] GitHub authentication works
-- [ ] Linear authentication works
-- [ ] JIRA authentication works
-- [ ] Issue CRUD operations work on all forges
-- [ ] Sync works reliably
-- [ ] Daemon runs stably
-- [ ] Offline mode works
-
-### User Experience
-- [ ] Help text is clear (`--help` on all commands)
-- [ ] Error messages guide next steps
-- [ ] Performance targets met
-- [ ] JSON output valid on all commands
-
-### Cross-Platform
-- [ ] macOS Intel tested
-- [ ] macOS ARM (Apple Silicon) tested
-- [ ] Linux x64 tested
-- [ ] Install script works on all platforms
-- [ ] Daemon auto-starts on all platforms
-- [ ] Credentials stored securely on all platforms
-
-### Release Artifacts
-- [ ] Install script tested (macOS, Linux)
-- [ ] Binary checksums generated
-- [ ] GitHub Release created
-- [ ] All platform binaries uploaded
-- [ ] Documentation current
-
----
-
-**Tester**: ___________________
-**Date**: ___________________
-**Version**: ___________________
-**Result**: [ ] PASS / [ ] FAIL
diff --git a/docs/DESIGN.md b/docs/DESIGN.md
index 5c97407..ecec9f9 100644
--- a/docs/DESIGN.md
+++ b/docs/DESIGN.md
@@ -308,6 +308,7 @@ isq close 423
 ```bash
 isq issue list
 isq issue show 423
+isq issue edit 423 --title "Refined title"
 isq issue close 423
 
 # Future
@@ -348,4 +349,3 @@ Both supported. Number for current repo, full ref for cross-repo.
 Don't pollute repo dirs. Don't pollute `~/` with dotfiles.
 
 **Status:** ✅ Decided
-
diff --git a/skills/isq/SKILL.md b/skills/isq/SKILL.md
index 7acfa62..8b6a992 100644
--- a/skills/isq/SKILL.md
+++ b/skills/isq/SKILL.md
@@ -103,6 +103,28 @@ isq issue create --title "Add feature" --body "Description here"
 isq issue create --title "Bug" --label=bug
 ```
 
+### Edit Issue Fields
+
+```bash
+isq issue edit 423 --title "Refined issue title"
+isq issue edit 423 --body "Updated description"
+cat summary.md | isq issue edit 423 --body -
+isq issue edit 423 --priority 2
+isq issue update 423 --title "..."   # Alias for edit
+```
+
+Priority scale:
+- `0` urgent
+- `1` high
+- `2` medium
+- `3` low
+- `4` none
+
+Forge notes:
+- Linear supports priority updates directly.
+- JIRA supports priority updates for `0..3` (no explicit `none` equivalent).
+- GitHub has no native issue priority update via API; use labels/config mapping.
+
 ### Comment on Issues
 
 ```bash
@@ -399,6 +421,7 @@ json = true    # All commands output JSON by default
 | `isq issue list --children-of 42` | Show only children of issue #42 |
 | `isq issue show <id>` | Show issue details |
 | `isq issue create --title "..."` | Create new issue |
+| `isq issue edit <id> [--title] [--body] [--priority]` | Edit mutable issue fields (`update` alias) |
 | `isq issue comment <id> "..."` | Add comment |
 | `isq issue close <id>` | Close issue |
 | `isq issue reopen <id>` | Reopen issue |
diff --git a/src/cli/args/issues.rs b/src/cli/args/issues.rs
index 07e8b58..42ec6e7 100644
--- a/src/cli/args/issues.rs
+++ b/src/cli/args/issues.rs
@@ -153,6 +153,29 @@ Examples:
         json: bool,
     },
 
+    /// Edit issue fields (alias: update)
+    #[command(alias = "update")]
+    Edit {
+        /// Issue ID (e.g., 123 or DEV-123)
+        id: String,
+
+        /// New title
+        #[arg(long)]
+        title: Option<String>,
+
+        /// New body text (use "-" to read from stdin)
+        #[arg(long)]
+        body: Option<String>,
+
+        /// Priority: 0=urgent, 1=high, 2=medium, 3=low, 4=none
+        #[arg(long, value_parser = clap::value_parser!(u8).range(0..=4))]
+        priority: Option<u8>,
+
+        /// Output as JSON
+        #[arg(long)]
+        json: bool,
+    },
+
     /// Manage labels on an issue
     Label {
         /// Issue ID (e.g., 123 or DEV-123)
@@ -182,3 +205,60 @@ Examples:
         json: bool,
     },
 }
+
+#[cfg(test)]
+mod tests {
+    use clap::Parser;
+
+    use crate::cli::args::{Cli, Commands, IssueCommands};
+
+    #[test]
+    fn parses_issue_edit_command() {
+        let cli = Cli::try_parse_from([
+            "isq",
+            "issue",
+            "edit",
+            "WRK-123",
+            "--title",
+            "Updated title",
+            "--priority",
+            "2",
+        ])
+        .expect("expected issue edit command to parse");
+
+        let Some(Commands::Issue { command }) = cli.command else {
+            panic!("expected issue command");
+        };
+        let IssueCommands::Edit {
+            id,
+            title,
+            body,
+            priority,
+            ..
+        } = command
+        else {
+            panic!("expected edit subcommand");
+        };
+
+        assert_eq!(id, "WRK-123");
+        assert_eq!(title, Some("Updated title".to_string()));
+        assert_eq!(body, None);
+        assert_eq!(priority, Some(2));
+    }
+
+    #[test]
+    fn parses_issue_update_alias_as_edit() {
+        let cli = Cli::try_parse_from(["isq", "issue", "update", "123", "--body", "-"])
+            .expect("expected issue update alias to parse");
+
+        let Some(Commands::Issue { command }) = cli.command else {
+            panic!("expected issue command");
+        };
+        let IssueCommands::Edit { id, body, .. } = command else {
+            panic!("expected edit subcommand");
+        };
+
+        assert_eq!(id, "123");
+        assert_eq!(body, Some("-".to_string()));
+    }
+}
diff --git a/src/cli/issues/mod.rs b/src/cli/issues/mod.rs
index d307310..5cb5634 100644
--- a/src/cli/issues/mod.rs
+++ b/src/cli/issues/mod.rs
@@ -16,7 +16,9 @@ use crate::repo;
 
 // Re-export all public commands
 pub use list::cmd_list;
-pub use write_ops::{cmd_assign, cmd_close, cmd_comment, cmd_create, cmd_label, cmd_reopen};
+pub use write_ops::{
+    cmd_assign, cmd_close, cmd_comment, cmd_create, cmd_edit, cmd_label, cmd_reopen,
+};
 
 pub fn cmd_show(id: &str, json_output: bool) -> Result<()> {
     // Apply json default from user config (CLI flag overrides)
diff --git a/src/cli/issues/write_ops/edit.rs b/src/cli/issues/write_ops/edit.rs
new file mode 100644
index 0000000..04dac2e
--- /dev/null
+++ b/src/cli/issues/write_ops/edit.rs
@@ -0,0 +1,146 @@
+//! Issue edit command
+
+use std::time::Instant;
+
+use anyhow::Result;
+
+use crate::db;
+use crate::display;
+use crate::forges::{UpdateIssueRequest, get_forge_for_repo};
+use crate::repo;
+
+use crate::cli::utils::{
+    WriteResult, is_offline_error, parse_forge_repo, read_stdin_if_piped,
+    validate_jira_issue_prefix,
+};
+
+pub async fn cmd_edit(
+    id: &str,
+    title: Option<String>,
+    body: Option<String>,
+    priority: Option<u8>,
+    json: bool,
+    cli_quiet: bool,
+) -> Result<()> {
+    // Apply json default from user config (CLI flag overrides)
+    let json = crate::user_config::resolve_json_default(json)?;
+    // Resolve quiet setting (CLI flag overrides config)
+    let quiet = crate::user_config::resolve_quiet_default(cli_quiet)?;
+
+    let body = resolve_body_input(body)?;
+    validate_update_fields(&title, &body, priority)?;
+
+    let start = Instant::now();
+
+    let repo_path = repo::detect_repo_path()?;
+    let (forge, link) = get_forge_for_repo(&repo_path)?;
+
+    let repo_struct = parse_forge_repo(&link.forge_repo)?;
+    validate_jira_issue_prefix(id, &repo_struct.name, &link.forge_type)?;
+
+    let issue_display = display::format_issue_id(id);
+    let req = UpdateIssueRequest {
+        title: title.clone(),
+        body: body.clone(),
+        priority,
+    };
+
+    match forge.update_issue(&repo_struct, id, req).await {
+        Ok(()) => {
+            let elapsed = start.elapsed();
+            if json {
+                let result = WriteResult {
+                    success: true,
+                    queued: false,
+                    issue_id: Some(id.to_string()),
+                    message: format!("Updated {}", issue_display),
+                    elapsed_ms: elapsed.as_millis() as u64,
+                };
+                println!("{}", serde_json::to_string_pretty(&result)?);
+            } else if !quiet {
+                println!("✓ Updated {} ({:.0}ms)", issue_display, elapsed.as_millis());
+            }
+        }
+        Err(e) if is_offline_error(&e) => {
+            let elapsed = start.elapsed();
+            let payload = serde_json::json!({
+                "issue_id": id,
+                "title": title,
+                "body": body,
+                "priority": priority,
+            });
+            let conn = db::open()?;
+            db::queue_op(&conn, &link.forge_repo, "edit", &payload.to_string())?;
+            if json {
+                let result = WriteResult {
+                    success: true,
+                    queued: true,
+                    issue_id: Some(id.to_string()),
+                    message: format!("Queued: edit {}", issue_display),
+                    elapsed_ms: elapsed.as_millis() as u64,
+                };
+                println!("{}", serde_json::to_string_pretty(&result)?);
+            } else if !quiet {
+                println!(
+                    "✓ Queued: edit {} (offline, {:.0}ms)",
+                    issue_display,
+                    elapsed.as_millis()
+                );
+            }
+        }
+        Err(e) => return Err(e),
+    }
+
+    Ok(())
+}
+
+fn resolve_body_input(body: Option<String>) -> Result<Option<String>> {
+    match body {
+        Some(value) if value == "-" => {
+            let piped = read_stdin_if_piped()?.ok_or_else(|| {
+                anyhow::anyhow!(
+                    "--body - requires stdin input.\n\
+                     Usage: echo \"text\" | isq issue edit <ID> --body -"
+                )
+            })?;
+            Ok(Some(piped))
+        }
+        Some(value) => Ok(Some(value)),
+        None => Ok(None),
+    }
+}
+
+fn validate_update_fields(
+    title: &Option<String>,
+    body: &Option<String>,
+    priority: Option<u8>,
+) -> Result<()> {
+    if title.is_none() && body.is_none() && priority.is_none() {
+        anyhow::bail!("No fields to edit. Provide at least one of --title, --body, or --priority.");
+    }
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::{resolve_body_input, validate_update_fields};
+
+    #[test]
+    fn validate_update_fields_requires_at_least_one_field() {
+        let err = validate_update_fields(&None, &None, None).unwrap_err();
+        assert!(err.to_string().contains("No fields to edit"));
+    }
+
+    #[test]
+    fn validate_update_fields_accepts_any_field() {
+        assert!(validate_update_fields(&Some("x".to_string()), &None, None).is_ok());
+        assert!(validate_update_fields(&None, &Some("x".to_string()), None).is_ok());
+        assert!(validate_update_fields(&None, &None, Some(2)).is_ok());
+    }
+
+    #[test]
+    fn resolve_body_input_keeps_literal_body() {
+        let body = resolve_body_input(Some("hello".to_string())).expect("body should parse");
+        assert_eq!(body, Some("hello".to_string()));
+    }
+}
diff --git a/src/cli/issues/write_ops/mod.rs b/src/cli/issues/write_ops/mod.rs
index 1334c0f..9c95949 100644
--- a/src/cli/issues/write_ops/mod.rs
+++ b/src/cli/issues/write_ops/mod.rs
@@ -1,8 +1,9 @@
-//! Issue write operation commands (create, comment, close, reopen, label, assign)
+//! Issue write operation commands (create, edit, comment, close, reopen, label, assign)
 
 mod assign;
 mod comment;
 mod create;
+mod edit;
 mod labels;
 mod status;
 
@@ -10,5 +11,6 @@ mod status;
 pub use assign::cmd_assign;
 pub use comment::cmd_comment;
 pub use create::cmd_create;
+pub use edit::cmd_edit;
 pub use labels::cmd_label;
 pub use status::{cmd_close, cmd_reopen};
diff --git a/src/daemon/queue.rs b/src/daemon/queue.rs
index 1afed98..6c36007 100644
--- a/src/daemon/queue.rs
+++ b/src/daemon/queue.rs
@@ -5,7 +5,7 @@ use std::collections::HashMap;
 use tracing::{debug, info, warn};
 
 use crate::db;
-use crate::forges::{CreateIssueRequest, Forge};
+use crate::forges::{CreateIssueRequest, Forge, UpdateIssueRequest};
 use crate::repo::Repo;
 
 /// Classification of operation errors for conflict resolution.
@@ -91,6 +91,7 @@ pub fn classify_error(err: &anyhow::Error) -> Option<ConflictKind> {
     if err_str.contains("failed to create comment")
         || err_str.contains("failed to close issue")
         || err_str.contains("failed to reopen issue")
+        || err_str.contains("failed to update issue")
         || err_str.contains("failed to add label")
         || err_str.contains("failed to remove label")
         || err_str.contains("failed to assign issue")
@@ -209,6 +210,23 @@ async fn execute_pending_op(forge: &dyn Forge, repo: &Repo, op: &db::PendingOp)
             forge.reopen_issue(repo, &issue_id).await?;
             info!(issue_id = %issue_id, "Reopened issue");
         }
+        "edit" => {
+            let issue_id = payload["issue_id"]
+                .as_str()
+                .map(|s| s.to_string())
+                .or_else(|| payload["issue_number"].as_u64().map(|n| n.to_string()))
+                .unwrap_or_default();
+            let req = UpdateIssueRequest {
+                title: payload["title"].as_str().map(|s| s.to_string()),
+                body: payload["body"].as_str().map(|s| s.to_string()),
+                priority: payload["priority"]
+                    .as_u64()
+                    .and_then(|p| u8::try_from(p).ok())
+                    .filter(|p| *p <= 4),
+            };
+            forge.update_issue(repo, &issue_id, req).await?;
+            info!(issue_id = %issue_id, "Updated issue");
+        }
         "label_add" => {
             let issue_id = payload["issue_id"]
                 .as_str()
diff --git a/src/daemon/tests.rs b/src/daemon/tests.rs
index 8a32a89..61cb4b2 100644
--- a/src/daemon/tests.rs
+++ b/src/daemon/tests.rs
@@ -319,6 +319,7 @@ fn test_classify_error_linear_mutation_failures() {
         "Failed to create comment",
         "Failed to close issue",
         "Failed to reopen issue",
+        "Failed to update issue",
         "Failed to add label",
         "Failed to remove label",
         "Failed to assign issue",
diff --git a/src/forges/github/mod.rs b/src/forges/github/mod.rs
index 1f54307..50f5d59 100644
--- a/src/forges/github/mod.rs
+++ b/src/forges/github/mod.rs
@@ -25,7 +25,7 @@ use serde::Deserialize;
 
 use crate::forges::{
     AuthConfig, CreateGoalRequest, CreateIssueRequest, FetchResult, Forge, Goal, Issue, Label,
-    RateLimitInfo,
+    RateLimitInfo, UpdateIssueRequest,
 };
 use crate::repo::Repo;
 
@@ -127,6 +127,38 @@ impl Forge for GitHubClient {
             .await
     }
 
+    async fn update_issue(
+        &self,
+        repo: &Repo,
+        issue_id: &str,
+        req: UpdateIssueRequest,
+    ) -> Result<()> {
+        let issue_number: u64 = issue_id
+            .parse()
+            .map_err(|_| anyhow::anyhow!("Invalid issue number: {}", issue_id))?;
+
+        if req.priority.is_some() {
+            anyhow::bail!(
+                "GitHub does not support native issue priority updates. Use labels configured in isq.toml."
+            );
+        }
+
+        let mut body = serde_json::Map::new();
+        if let Some(title) = req.title {
+            body.insert("title".to_string(), serde_json::json!(title));
+        }
+        if let Some(description) = req.body {
+            body.insert("body".to_string(), serde_json::json!(description));
+        }
+
+        if body.is_empty() {
+            anyhow::bail!("No fields provided to update");
+        }
+
+        self.patch_issue(repo, issue_number, &serde_json::Value::Object(body))
+            .await
+    }
+
     async fn add_label(&self, repo: &Repo, issue_id: &str, label: &str) -> Result<()> {
         let issue_number: u64 = issue_id
             .parse()
diff --git a/src/forges/jira/forge_impl.rs b/src/forges/jira/forge_impl.rs
index baefd69..759aef0 100644
--- a/src/forges/jira/forge_impl.rs
+++ b/src/forges/jira/forge_impl.rs
@@ -11,7 +11,7 @@ use super::types;
 use crate::db;
 use crate::forges::{
     CreateGoalRequest, CreateIssueRequest, FetchResult, Forge, Goal, GoalState, Issue, Label,
-    RateLimitInfo,
+    RateLimitInfo, UpdateIssueRequest,
 };
 use crate::repo::Repo;
 
@@ -117,6 +117,48 @@ impl Forge for JiraClient {
         self.post_no_response(&path, &body).await
     }
 
+    async fn update_issue(
+        &self,
+        _repo: &Repo,
+        issue_id: &str,
+        req: UpdateIssueRequest,
+    ) -> Result<()> {
+        let path = format!("/issue/{}", issue_id);
+
+        let mut fields = serde_json::Map::new();
+        if let Some(title) = req.title {
+            fields.insert("summary".to_string(), serde_json::json!(title));
+        }
+        if let Some(body) = req.body {
+            fields.insert("description".to_string(), markdown_to_adf(&body));
+        }
+        if let Some(priority) = req.priority {
+            let priority_name = match priority {
+                0 => "Highest",
+                1 => "High",
+                2 => "Medium",
+                3 => "Low",
+                4 => {
+                    anyhow::bail!(
+                        "JIRA does not support an explicit 'none' priority. Use 0-3 instead."
+                    );
+                }
+                _ => anyhow::bail!("Invalid priority {}. Expected 0-4.", priority),
+            };
+            fields.insert(
+                "priority".to_string(),
+                serde_json::json!({ "name": priority_name }),
+            );
+        }
+
+        if fields.is_empty() {
+            anyhow::bail!("No fields provided to update");
+        }
+
+        let body = serde_json::json!({ "fields": fields });
+        self.put(&path, &body).await
+    }
+
     async fn add_label(&self, _repo: &Repo, issue_id: &str, label: &str) -> Result<()> {
         let path = format!("/issue/{}", issue_id);
 
diff --git a/src/forges/linear/forge_impl.rs b/src/forges/linear/forge_impl.rs
index 3cb11a6..8105bbf 100644
--- a/src/forges/linear/forge_impl.rs
+++ b/src/forges/linear/forge_impl.rs
@@ -14,6 +14,7 @@ use super::{
 };
 use crate::forges::{
     CreateGoalRequest, CreateIssueRequest, FetchResult, Forge, Goal, Issue, Label, RateLimitInfo,
+    UpdateIssueRequest,
 };
 use crate::repo::Repo;
 
@@ -191,6 +192,17 @@ impl Forge for LinearClient {
         Ok(())
     }
 
+    async fn update_issue(
+        &self,
+        repo: &Repo,
+        issue_id: &str,
+        req: UpdateIssueRequest,
+    ) -> Result<()> {
+        let issue_number = parse_issue_number(issue_id)?;
+        let issue = self.get_issue_by_number(&repo.name, issue_number).await?;
+        self.update_issue_fields_by_id(&issue.id, req).await
+    }
+
     async fn add_label(&self, repo: &Repo, issue_id: &str, label: &str) -> Result<()> {
         let issue_number = parse_issue_number(issue_id)?;
         let issue = self.get_issue_by_number(&repo.name, issue_number).await?;
diff --git a/src/forges/linear/mod.rs b/src/forges/linear/mod.rs
index 6cbaf3c..5b81469 100644
--- a/src/forges/linear/mod.rs
+++ b/src/forges/linear/mod.rs
@@ -17,6 +17,7 @@ mod projects;
 mod queries;
 mod states;
 mod types;
+mod updates;
 mod users;
 
 use anyhow::anyhow;
@@ -81,6 +82,20 @@ pub(super) fn map_linear_priority(linear_priority: u8) -> u8 {
     }
 }
 
+/// Map our priority scale to Linear priority.
+/// Ours:   0=urgent, 1=high, 2=medium, 3=low, 4=none
+/// Linear: 0=none, 1=urgent, 2=high, 3=normal, 4=low
+pub(super) fn map_to_linear_priority(priority: u8) -> u8 {
+    match priority {
+        0 => 1, // urgent → urgent
+        1 => 2, // high → high
+        2 => 3, // medium → normal
+        3 => 4, // low → low
+        4 => 0, // none → no priority
+        _ => 0, // unknown → no priority
+    }
+}
+
 /// Parse Linear's rate limit reset timestamp.
 /// Linear returns milliseconds, we need seconds.
 fn parse_reset_timestamp(value: &str) -> Option<i64> {
@@ -155,6 +170,16 @@ mod tests {
         assert_eq!(map_linear_priority(255), 4);
     }
 
+    #[test]
+    fn test_map_to_linear_priority() {
+        assert_eq!(map_to_linear_priority(0), 1);
+        assert_eq!(map_to_linear_priority(1), 2);
+        assert_eq!(map_to_linear_priority(2), 3);
+        assert_eq!(map_to_linear_priority(3), 4);
+        assert_eq!(map_to_linear_priority(4), 0);
+        assert_eq!(map_to_linear_priority(255), 0);
+    }
+
     #[test]
     fn test_parse_reset_timestamp_converts_ms_to_seconds() {
         // Linear returns milliseconds, we need seconds
diff --git a/src/forges/linear/updates.rs b/src/forges/linear/updates.rs
new file mode 100644
index 0000000..c756192
--- /dev/null
+++ b/src/forges/linear/updates.rs
@@ -0,0 +1,55 @@
+//! Linear issue update helpers.
+
+use anyhow::Result;
+
+use super::LinearClient;
+use super::map_to_linear_priority;
+use super::types;
+use crate::forges::UpdateIssueRequest;
+
+impl LinearClient {
+    /// Update mutable issue fields by Linear internal issue ID.
+    pub async fn update_issue_fields_by_id(
+        &self,
+        issue_id: &str,
+        req: UpdateIssueRequest,
+    ) -> Result<()> {
+        let mut input = serde_json::Map::new();
+
+        if let Some(title) = req.title {
+            input.insert("title".to_string(), serde_json::json!(title));
+        }
+        if let Some(body) = req.body {
+            input.insert("description".to_string(), serde_json::json!(body));
+        }
+        if let Some(priority) = req.priority {
+            input.insert(
+                "priority".to_string(),
+                serde_json::json!(map_to_linear_priority(priority)),
+            );
+        }
+
+        if input.is_empty() {
+            anyhow::bail!("No fields provided to update");
+        }
+
+        let query = r#"
+            mutation($issueId: String!, $input: IssueUpdateInput!) {
+                issueUpdate(id: $issueId, input: $input) {
+                    success
+                }
+            }
+        "#;
+
+        let variables = serde_json::json!({
+            "issueId": issue_id,
+            "input": input
+        });
+
+        let response: types::IssueUpdateResponse = self.query(query, Some(variables)).await?;
+        if !response.issue_update.success {
+            anyhow::bail!("Failed to update issue");
+        }
+        Ok(())
+    }
+}
diff --git a/src/forges/mod.rs b/src/forges/mod.rs
index 77afd19..43459ad 100644
--- a/src/forges/mod.rs
+++ b/src/forges/mod.rs
@@ -22,5 +22,5 @@ pub use link::{LinkArgs, LinkResult, not_linked_error};
 pub use traits::Forge;
 pub use types::{
     CreateGoalRequest, CreateIssueRequest, FetchResult, Goal, GoalState, Issue, Label,
-    RateLimitInfo, create_http_client, parse_opts,
+    RateLimitInfo, UpdateIssueRequest, create_http_client, parse_opts,
 };
diff --git a/src/forges/traits.rs b/src/forges/traits.rs
index 7576334..3db66e7 100644
--- a/src/forges/traits.rs
+++ b/src/forges/traits.rs
@@ -6,6 +6,7 @@ use chrono::{DateTime, Utc};
 
 use super::types::{
     CreateGoalRequest, CreateIssueRequest, FetchResult, Goal, Issue, Label, RateLimitInfo,
+    UpdateIssueRequest,
 };
 use crate::db;
 use crate::repo::Repo;
@@ -38,6 +39,14 @@ pub trait Forge: Send + Sync {
     /// Reopen an issue
     async fn reopen_issue(&self, repo: &Repo, issue_id: &str) -> Result<()>;
 
+    /// Update mutable issue fields (title, body, priority)
+    async fn update_issue(
+        &self,
+        repo: &Repo,
+        issue_id: &str,
+        req: UpdateIssueRequest,
+    ) -> Result<()>;
+
     /// Add a label to an issue
     async fn add_label(&self, repo: &Repo, issue_id: &str, label: &str) -> Result<()>;
 
diff --git a/src/forges/types.rs b/src/forges/types.rs
index bd4473a..bfec170 100644
--- a/src/forges/types.rs
+++ b/src/forges/types.rs
@@ -192,6 +192,14 @@ pub struct CreateIssueRequest {
     pub opts: std::collections::HashMap<String, String>,
 }
 
+/// Request to update mutable issue fields
+pub struct UpdateIssueRequest {
+    pub title: Option<String>,
+    pub body: Option<String>,
+    /// Priority level: 0=urgent, 1=high, 2=medium, 3=low, 4=none
+    pub priority: Option<u8>,
+}
+
 /// Parse forge-specific options from CLI -o key=value arguments
 pub fn parse_opts(opts: &[String]) -> std::collections::HashMap<String, String> {
     let mut map = std::collections::HashMap::new();
diff --git a/src/main.rs b/src/main.rs
index 70df854..a80b9df 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -180,6 +180,13 @@ async fn main() -> Result<()> {
             IssueCommands::Reopen { id, json } => {
                 cli::issues::cmd_reopen(&id, json, cli.quiet).await?
             }
+            IssueCommands::Edit {
+                id,
+                title,
+                body,
+                priority,
+                json,
+            } => cli::issues::cmd_edit(&id, title, body, priority, json, cli.quiet).await?,
             IssueCommands::Label {
                 id,
                 action,